Oriental Lily ‘After Eight’
Greenhouse Product News
February 2010
By Paul Pilon
With a sweet, heady scent and enticing pink blooms, this Oriental lily will delight consumers at all hours of the day.
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Cyclamen ‘Something Magic’
Greenhouse Product News
November 2009
By Paul Pilon
They aren’t just for the holidays anymore: Cyclamen are winter hardy and a great addition to many perennial gardens.
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Heuchera ‘Melting Fire’
Greenhouse Product News
October 2009
By Paul Pilon
Propagated from seed, Fleuroselect’s Novelty Award winner makes gardens smolder with bright crimson, maroon and purple foliage and bold white coral bell–shaped blooms.
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Dianthus ‘Coconut Punch’
Greenhouse Product News
September 2009
By Paul Pilon
Ideal for container, border or mass plantings, this deep-red member of the Fruit Punch family packs a wallop in the garden.
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Penstemon barbatus Pinacolada Series
Greenhouse Product News
August 2009
By Paul Pilon
Showy flowers and a compact habit make the six colors in the penstemon Pinacolada series an intoxicating pick for containers and border plantings.
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Veronica x hybrida ‘Christy’
Greenhouse Product News
July 2009
By Paul Pilon
With lovely blue-violet blooms and low mounds of highly serrated foliage, this fernlike plant is perfect for border plantings, along walkways and in patio planters.
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Dryopteris erythsora ‘Brilliance’
Greenhouse Product News
June 2009
By Paul Pilon
This showy autumn fern loves to be the center of attention. And its dazzling tricolor fronds provide season-long interest your customers won’t be able to resist.
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Dicentra ‘Burning Hearts’
Greenhouse Product News
March 2009
By Paul Pilon
This classic fern-leaf bleeding hearts series is sure to lighten up landscapes for years to come.
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Aubretia hybrida Axcent series
Greenhouse Product News
February 2009
By Paul Pilon
With its flower power and early bloom, the Axcent series is an impressive complement to any perennial program.
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Hakonechloa macra ‘Aureola’
Greenhouse Product News
January 2009
By Paul Pilon
Nothing brightens up a landscape quite like this ornamental grass’ cascading foliage — reminiscent of golden waterfalls — and varying, vibrant leaf colors. Already a popular category, this striking series is sure to inspire your customers.
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Geum coccineum ‘Cooky’
Greenhouse Product News
December 2008
By Paul Pilon
With its cheerful burst of color and ease of production, ‘Cooky’ offers untapped potential to jump start your early sales.
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Coreopsis ‘Jethro Tull’
Greenhouse Product News
October 2008
By Paul Pilon
This attention-grabbing series is sure to set the landscape ablaze with its bright-yellow, uniquely fluted blooms.
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Papaver nudicaule ‘Garden Gnome’
Greenhouse Product News
September 2008
By Paul Pilon
Gardeners and retailers alike have been warming up the Iceland poppy’s appeal in recent years. With its undeniable fl ower power, compact habit and ease of production, ‘Garden Gnome’ is quickly gaining popularity.
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Perfecting Perennial Production
Greenhouse Product News
August 2008
By Allen R. Pyle
As perennials continue to grow in popularity among consumers, you must be prepared for the specific challenges associated with perennial production.
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Agastache ‘Raspberry Summer’
Greenhouse Product News
August 2008
By Paul Pilon
This summer staple series is a breeze to produce and boasts an abundance of colorful flower clusters. Once established, ‘Raspberry Summer’ is also fairly drought tolerant.
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Controlling Perennial Plant Height by “Watering In”
Greenhouse Product News
July 2008
By Paul Pilon
Learn the dos and don’ts of this promising application method, which eliminates the high labor costs of traditional pot-to-pot applications but poses some volume variability challenges.
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Monarda Didyma ‘Pink Lace’
Greenhouse Product News
July 2008
By Paul Pilon
With an enticing aroma, burst of lipstick-pink flowers and compact habit, this old-fashioned garden perennial manages to remain fresh and exciting. ‘Pink Lace’ is a perfect candidate for the current container craze.
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Hemerocallis ‘Ruby Stella’
Greenhouse Product News
June 2008
By Paul Pilon
This red-blooming daylily has earned a reputation for its stamina, reliability and tough nature. Like its well-known sister, ‘Stella D’Oro’, ‘Ruby Stella’ is a surefire winner.
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Polemonium ‘Bressingham Purple’
Greenhouse Product News
May 2008
By Paul Pilon
Compact and colorful, Jacob’s ladder’s vibrant purple foliage adds oomph to any landscape.
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Myosotis sylvatica ‘Rosylva’
Greenhouse Product News
April 2008
By Paul Pilon
As a cool-season plant, this cultivar does not tolerate extreme summer heat or extended dry periods. But when produced for early spring programs, this familiar border plant provides an unforgettable burst of color in the landscape.
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Leucanthemum maximum ‘Broadway Lights’
Greenhouse Product News
February 2008
By Paul Pilon
With its artistic look and marketing versatility, this chameleon-like cultivar stands out from the competition. The recent introduction is capturing the admiring gaze of gardeners and growers alike.
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Geranium ‘Rozanne’ Hybrid
Greenhouse Product News
January 2008
By Paul Pilon
This versatile perennial exhibits an extended bloom time and can withstand intense heat, allowing the prize-winning hybrid to thrive continuously in diverse climates across the country.
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Campanula glomerata Bellefleur Series
Greenhouse Product News
December 2007
By Paul Pilon
This compact and colorful series loves to show off and is ideal for production in small containers. With its first-year flowering, floriferous nature and uniform growth habit, it is sure to breathe new life into any perennial program.
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Caryopteris divaricata ‘Snow Fairy’
Greenhouse Product News
November 2007
By Paul Pilon
‘Snow Fairy’, an herbaceous perennial that grows and performs like a shrub, can be beneficial for growers. With its striking green-and-white foliage, few cultural problems and ease of production, it’s a must-have in the landscape. Just keep them away from wet sites.
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Achillea millefolium Tutti Frutti Series
Greenhouse Product News
October 2007
By Paul Pilon
The heat-loving and low-maintenance Tutti Frutti series is easy on the eyes and easy to grow. Beneficial attributes include uniform flowering, a long bloom time, great plant habit for container production and robust, disease-resistant foliage.
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Vernalizing Perennials
Greenhouse Product News
September 2007
By Erik Runkle
For some cold-hardy perennials, a cold treatment is the key to initiate flowering. Here are tips for successful vernalization treatments of cold-hardy perennials that are propagated by seeds or cuttings.
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Verbascum x hybrida ‘Southern Charm’
Greenhouse Product News
August 2007
By Paul Pilon
Formerly recognized only as a weed, verbascum is gaining popularity with gardeners and growers. ‘Southern Charm’ will bloom the first year when started from seed without the need for vernalization.
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Turning Your Production Space
Greenhouse Product News
June 2007
By Paul Pilon
Adding an additional turn of production space can bring many benefits to your business. Read on to learn how to effectively produce a second perennial crop.
PDF Version
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Salvia x sylvestris ‘Marcus’
Greenhouse Product News
June 2007
By Paul Pilon
This dwarf meadow sage is well suited for container production. Avoid crown and root rots by refraining from excessively moist or wet conditions.
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Primula Acaulis Harlequin Series
Greenhouse Product News
March 2007
By Paul Pilon
Breeding efforts throughout the past few decades have helped produce primula varieties with improved attributes, such as those in the Harlequin series.
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Asiatic Lily: Lily Looks Series
Greenhouse Product News
February 2007
By Paul Pilon
Lily Looks, a new series of Asiatic lilies, contains numerous dwarf cultivars with various flower colorations that are all well suited for commercial production.
PDF Version
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Nepeta x faassenii ‘Walker’s Low’
Greenhouse Product News
January 2007
By Paul Pilon
Thanks in part to ease of production and landscape appeal, nepeta ‘Walker’s Low’ has been named the 2007 Perennial Plant of the Year by the Perennial Plant Association.
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Rudbeckia fulgida ‘Pot Of Gold’
Greenhouse Product News
December 2006
By Paul Pilon
This black-eyed Susan is an improved selection of a proven cultivar. These cold-beneficial plants feature long-lasting, daisy-like flowers and can be used as accent and border plants and in mass plantings.
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Viola ‘Starry Night’
Greenhouse Product News
November 2006
By Paul Pilon
This cool-season perennial has great landscape appeal
and no vernalization requirement, which means producing
flowering plants is mostly a function of temperature and time.
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Growing Cool Perennials
Greenhouse Product News
September 2006
By Art Cameron, Cathy Whitman and Sonali Padhye, Michigan State University
Growing perennials in cool conditions is becoming more inviting to growers as energy prices continue to climb. Michigan State University researchers detail the culture for some of the best cool-season perennials.
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Doronicum orientale ‘Little Leo’
Greenhouse Product News
September 2006
By Paul Pilon
This cool-season perennial does not tolerate heat well but is commonly produced for early spring sales because of its abundant semi-double, bright-yellow flowers.
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Sensational Salvia
Greenhouse Product News
April 2006
By Luis Masvidal and Jack Williams
This relatively under-utilized group of salvia is available in a range of colors and has low water requirements, so why aren’t more of these salvia being produced and sold?
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Perennials: The New Frontier
Greenhouse Product News
November 2005
By Joyce Latimer
PGRs are used as a last resort for those difficult crops and even then on a prescription basis. As Doong explained, one group of impatiens may be treated with a PGR, while another group with the same planting date will not be treated.
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Cool Campanula
Greenhouse Product News
October 2005
By Sonali Padhye, Cathy Whitman, Erik Runkle and Art Cameron
Cooling and daylength can regulate flowering of some campanula species and cultivars.
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Grower 101: Rooting Hormones
Greenhouse Product News
August 2005
By Christopher Cerveny and James Gibson
Rooting hormones can improve the visibility of temperate and tropical annual and perennial species by increasing propagation success.
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Perennial Solutions: Astilbe chinensis ‘Visions’
Greenhouse Product News
August 2005
By Paul Pilon
Visions’ is not a patented cultivar and can be propagated by any grower. There are two fairly new introductions with the Visions name, ‘Vision in Pink’ and ‘Vision in Red’; these are patented cultivars.
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Factors Affecting PGR Liner Dips
Greenhouse Product News
July 2005
Rebecca Schnelle, Christopher Cerveny and Jim Barrett
Liner dips are a useful new technique that make the production of mixed containers and vigorous crops in baskets and other containers much easier and that allow for more efficient use of PGR chemicals.
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Coreopsis: A Great All-American Genus
Greenhouse Product News
July 2005
By Sonali Padhye and Art Cameron
Typically, we recommend that ‘Sunray’ seedlings have an average of at least 16 leaves, or eight nodes, before the beginning of vernalization.
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Best in Show
Greenhouse Product News
June 2005
By Carrie Burns, Catherine Evans and Bridget White
The following 22 items represent some of the best new vegetative introductions this year. Look for these varieties to be widely marketed for the 2006 growing year and for our seed coverage in next month’s issue.
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Breeding Breakthroughs
Greenhouse Product News
June 2005
By Carrie Burns, Catherine Evans and Bridget White
As we said, there were many varieties that were amazing; these five aren’t by any means the only varieties worth mentioning; you can find the other great Pack Trials introductions on page 38.
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Echinacea purpurea ‘Little Giant’
Greenhouse Product News
June 2005
By Paul Pilon
This American native is used as an aromatic border plant to attract hummingbirds and butterflies into the gardens. Echinacea is widely used as an herbal medicine to stimulate the immune system and fight off various viral and bacterial infections.
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Grower 101: Scheduling Perennials
Greenhouse Product News
June 2005
By Leonard Perry
If you wish to do your own vegetative propagation, keep in mind this is easiest when the plant itself wants to be vegetative and not flowering. This is often in spring for divisions and various times of summer for cuttings.
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Making the Cut
Greenhouse Product News
June 2005
By John Dole, Frankie Fanelli, William Fonteno, Beth Harden and Sylvia Blankenship
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Pack Trial Lessons
Greenhouse Product News
June 2005
By Rick Schoellhorn
2005 Pack Trials held many lessons,
including the standard crop introductions,
marketing ideas and more.
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Perennial Solutions: Geranium ‘Rozanne’
Greenhouse Product News
May 2005
By Paul Pilon
‘Rozanne’ is an easy, carefree cultivar with finely cut, slightly marbled, deep-green foliage that turns reddish-brown in the autumn for added interest.
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Pushing Penstemon
Greenhouse Product News
May 2005
By Rick Schoellhorn
If you haven’t seen one before, penstemon looks a little like a gloxinia flower on an angelonia chassis; with a pale or white throat and rich colors on the outside of each flower. I think the releases of the vegetative types are really going to open the market for this genus.
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Gaillardia aristata ‘Arizona Sun’
Greenhouse Product News
April 2005
By Paul Pilon
The common name, blanket flower, came about since the striking three-colored flowers of gaillardias resemble the colors commonly found in Indian blankets.
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Osteospermum Cultivar Trial 2004
Greenhouse Product News
March 2005
By Monica Kmetz-González and Claudio Pasian
The Ohio State University Learning Garden evaluated 26 entries during its greenhouse trial to find the top performing osteospermums.
PDF Version
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Cybister Amaryllis
Greenhouse Product News
March 2005
By Camila Paula and Rick Schoellhorn, University of Florida
We forget how much longer Europe has been working in horticulture and what incredible diversity their market offers.
PDF Version
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Nepeta ‘Blue Ice’
Greenhouse Product News
March 2005
By Paul Pilon
This new variety is an exception in its species, making it suitable for use as a groundcover or in rock gardens, borders and containers.
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Pulmonaria'Polar Splash'
Greenhouse Product News
February 2005
By Paul Pilon
This variety, which tolerates more sun than other pulmonarias,
works well as a specimen plant and a ground cover.
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Helleborus x hybridus
Greenhouse Product News
January 2005
By Paul Pilon
It has gained such popularity that the members of the Perennial Plant Association have voted Helleborus x hybridus the 2005 Perennial Plant of the Year.
PDF Version
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Cold Storage of Colocasia
Greenhouse Product News
January 2005
By Jim Faust, Kelly Lewis and Jeff Adelberg
As a result, most cultivars are propagated by division and can be purchased as bareroot plants.
PDF Version
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A State of Phlox
Greenhouse Product News
January 2005
By Rick Schoellhorn, University of Florida
All phlox groups are native to the North American continent, so they can offer additional sales if marketed as native plants.
PDF Version
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Holiday Companion Plants
Greenhouse Product News
December 2004
By Rick Schoellhorn, University of Florida
Sure, poinsettias are the holiday crop,
but is there a market for other holiday crops
to accentuate poinsettias or even just stand alone?
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Digitalis purpurea‘Camelot’
Greenhouse Product News
December 2004
By Paul Pilon
This digitalis
provides high
germination rates, uniform growth
and more reliable first-year flowering.
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Growing Tall
Greenhouse Product News
December 2004
By Bridget White
To my surprise, there were tons of options — everything from tropicals to trees and foliage to flowering.
PDF Version
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Echinacea - Celebrate Diversity
Greenhouse Product News
November 2004
By Rick Schoellhorn, University of Florida
I'm hoping this is the beginning of not only some fantastic new hybrids but also increased awareness of some of the lesser-known species.
PDF Version
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Hardy Hibiscus
Greenhouse Product News
October 2004
By Rick Schoellhorn, University of Florida
Connoisseurs of the hibiscus will know about some of the great species forms floating around in the industry, and for those of you who have no idea what I am talking about we’ll do a little history and get you caught up…
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Gaura lindheimeriBallerina
Greenhouse Product News
October 2004
By Paul Pilon
This series performs well across a wide portion of the United States in containers, mass plantings and
as accent plants.
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Talk of the Summer Trials
Greenhouse Product News
September 2004
By Rick Schoellhorn and Marc Frank, University of Florida
In common with other year’s results we saw a few common markers that separate performance in the Sunbelt from performance in more Northern regions of the state.
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Phygelius Possibilities
Greenhouse Product News
August 2004
By Matt Moyer and Rick Schoellhorn, University of Florida
There are about 15 cultivars of the two species commercially available, many of which are interspecific hybrids.
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Managing Perennial Stock Plants with Florel
Greenhouse Product News
August 2004
By Janelle Glady, Suzanne Lang and Erik Runkle
Michigan State research determines whether Florel can be used as a tool to keep perennial
stock plants vegetative and increase the number of cuttings harvested for six perennial species.
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Dianthus
Greenhouse Product News
June 2004
Paul Pilon
As 2004 has been dubbed “the year of
the dianthus,” here
is one to consider.
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Tender Perennials
Greenhouse Product News
June 2004
By Art Cameron, Beth Fausey, Cathy Whitman and Erik Runkle
Even when perennial plants are not rock hardy, some can still have great market potential for northern growers.
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WINNER'S CIRCLE
Greenhouse Product News
May 2004
By Neda Simeonova
GPN’s annual Winner’s Circle introduces the best of the best
chosen by AAS, AARS, Fleuroselect and FloraStar.
PDF Version
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A Cut Above the Rest
Greenhouse Product News
April 2004
By John Dole
Most of the trialers are commercial cut flower growers, while a few are universities, seed suppliers and other folks interested in supporting field cut production.
PDF Version
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Aquilegia x hybrida Swan
Greenhouse Product News
March 2004
By Paul Pilon
The cultivars in the Swan series produce an abundance of large, spurred blooms above mounds of attractive, medium-green foliage.
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Gaillardia compositae 'Fanfare'
Greenhouse Product News
January 2004
Paul Pilon
Occasionally a really exciting plant comes along that can easily be placed into mainstream perennial production. Gaillardia 'Fanfare' is one of those plants that has caught my eye and is receiving rave reviews from countless growers, retailers and avid gardeners alike.
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Tiarella 'Jeepers Creepers'
Greenhouse Product News
December 2003
Paul Pilon
Growers often consider tiarella cultivars prime candidates for their product mix for shady locations. Tiarella 'Jeepers Creepers' is no exception. With its large, bold, well-marked foliage, abundance of cream-colored flowers and eye-catching winter contrast, this cultivar is sure to perform well in today's perennial marketplace.
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Festuca glauca ‘Boulder Blue’
Greenhouse Product News
November 2003
Paul Pilon
Festuca 'Boulder Blue,' an outstanding cultivar of ornamental grass, has been produced regionally for quite some time but just recently became available to growers throughout the country.
PDF Version
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Hedera helix 'Duck Foot'
Greenhouse Product News
October 2003
Paul Pilon
A sport of Hedera helix 'Merion Beauty' isolated in New Jersey in 1976, 'Duck Foot' gets its name from its small, 1-inch, three-lobed leaves that resemble the foot of a duck. Due to its distinguishing characteristics, ease of production and marketability, the American Ivy Society has named Hedera helix Duck Foot the 2004 Ivy of the Year.
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Athyrium nipponicum 'Pictum'
Greenhouse Product News
September 2003
Paul Pilon
With so many landscape uses, ease of production and wide availability, it is no wonder Athyrium nipponicum ‘Pictum’ is gaining popularity and receiving national recognition. Pictum was the recipient of the 2002 Growers’ Choice Award by the Michigan Nursery and Landscape Association and most recently selected by the Perennial Plant Association as the 2004 Perennial Plant of the Year.
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Clematis 'Inspiration'
Greenhouse Product News
August 2003
Paul Pilon
This variety, with its unique flower color, long bloom time and exceptional vase life, has received rave reviews in European markets, earned numerous awards including the 1999 Award of Recommendation by the Royal Boskoop Horticultural Society, The Netherlands, and was selected as the best introduction at the 17th Salon Végétal, France in 2002.
PDF Version
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Grower 101: Handling Unrooted Perennials
Greenhouse Product News
August 2003
John Friel
Last month's Grower 101 outlined how to handle bare root perennials; this month goes a little farther back in the process and describes how to handle unrooted perennials.
PDF Version
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Travels on Highway 101 Part II
Greenhouse Product News
July 2003
Rick Schoellhorn, University of Florida
This second article on new crops displayed at Pack Trials 2003 will contain a bit less on production information and more on crops that struck me as interesting and worthy to note, especially for growers looking to develop a niche for the unusual.
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Hibiscus moscheutos 'Pyrenees Pink'
Greenhouse Product News
July 2003
Paul Pilon
Hardy hibiscus is an old-time garden favorite riding a new wave of popularity. Hibiscus moscheutos is a marshland native of the eastern United States and has hardiness in USDA Zones 4-9. With new developments in plant breeding, today's hibiscus cultivars offer improved flower sizes and colors, more appealing plant habits and extended bloom times.
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Finishing Bedding Plants and Perennials
Greenhouse Product News
July 2003
Roger C. Styer
It's time to recap problem areas. My top five encompass the growers' greatest concerns. These top issues are where I spend most of my time with clients.
PDF Version
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Lamiaceae Response to PGRs
Greenhouse Product News
July 2003
Joyce Latimer, Holly Scoggins and Velva Groover
With the small number of ornamental members of the Lamiaceae family, this article contains PGR information on the primary ornamentals in this family and will provide you with a good starting point for using PGRs in your operation.
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Grower 101: Bare Root Perennials
Greenhouse Product News
July 2003
Neda Simeonova
Bare root perennials are dormant plants with the soil removed from the roots. They are typically field grown for a period of time, usually one year, and harvested. Once the plants are dug, the tops are trimmed down to approximately 1 inch from the crown with the exception of evergreen perennials such as iberis, lavender, dianthus, Phlox subulata and yucca. These bare root plants are then shipped to finish growers or end users.
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Pick of the Pack Trials, Part II
Greenhouse Product News
July 2003
Carrie Burns, Catherine Evans and Bridget White
The seed market's advancements, showcased in this year's Pack Trials, have brought unique traits and improvements to seed varieties that are frequently found in vegetative varieties. Now we are graced with unique crops such as seed hibiscus and double aquilegia. So, without delay, check out these and other innovative seed varieties we saw as we traveled the coast. Enjoy!
PDF Version
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Editors' Pick of the Pack Trials, part I
Greenhouse Product News
June 2003
Carrie Burns, Catherine Evans and Bridget White
If you were there, you might have missed something or maybe you just need a refresher, and if you weren't able to attend Pack Trials this year, here's your chance.
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Veronica spicata 'Royal Candles'
Greenhouse Product News
June 2003
Paul Pilon
Veronica 'Royal Candles' is a clump-forming, bushy cultivar often utilized in rock gardens, as a border plant or in containers. This cultivar has many distinguishing characteristics such as a compact growth habit, reaching only 10-12 inches tall; clean leafy foliage topped with numerous vertical flower spikes; and deep blue-purple flowers, lasting from late spring to midsummer. With these characteristics, it is well suited to production in small container sizes and for marketing alongside bedding plants.
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Travels on Highway 101, Part I
Greenhouse Product News
June 2003
Rick Schoellhorn
Pack trials this year seemed a lot like our national outlook: cautious and playing to its strengths. There was a lot of wonderful material, but it was toned down a bit from last year. Sorting out differences between plants became even more important this year, as I was touring with the editors from GPN, some of which were getting their first exposure to the diversity of our industry.
PDF Version
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Fall Crops: Making A Brighter Season
Greenhouse Product News
May 2003
Catherine Evans
Growers are producing pansies, snapdragons, perennials, cyclamen, dianthus and more -- not only in the spring, but in the fall as well. In the past, selection was a very small part of the fall crop; however, as time goes by, trends are changing and people are becoming more interested in color and variety and focusing less on tradition
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Lavandula angustifolia 'Hidcote Superior'
Greenhouse Product News
May 2003
Paul Pilon
Lavender 'Hidcote Superior' is an improved version of the very popular cultivar lavender 'Hidcote'. The improvements over its predecessor include enhanced uniformity, consistent quality and improved flower power. This cultivar of English Lavender remains compact and is very suitable for container production or in border plantings.
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Hemerocallis 'Little Missy'
Greenhouse Product News
April 2003
Paul Pilon
Hemerocallis 'Little Missy' is a new diploid daylily that was recently introduced by DeVroomen Holland Garden Products. This cultivar reaches 2 feet tall, bearing beautiful, purple-red flowers with fine, white edges and a contrasting yellow throat. Little Missy is considered a rebloomer, which means it produces a flush of flowers in late spring to early summer and bears flowers again later that same summer.
PDF Version
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Japanese Hydrangeas
Greenhouse Product News
April 2003
Rick Schoellhorn
Many growers produce and are familiar with the common Hydrangea macrophylla hybrids, and some are also producing lace cap types for spring sales. However, there is a newer group of hybrids that have received little attention; those are the hybrids of H. macrophylla and H. serrata. These newer forms offer different flower types and some foliage color options as well.
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New Cut Flower Introductions
Greenhouse Product News
April 2003
John Dole
Cut flower growers are always searching for the latest in new cuts to jazz up their product line. To provide that information, the Association of Specialty Cut Flower Growers (ASCFG) conducts an annual National Seed and Perennial Trial Program. We had a number of great selections in the trials this year. The top performers in the trials are entered in the ASCFG Cut Flower of the Year contest.
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Asteraceae Response to PGRs
Greenhouse Product News
March 2003
Joyce Latimer, Holly Scoggins and Velva Groover
Using information from our own research or other published sources, this month's article will look at the currently known responses of perennial plants from the family Asteraceae (Compositae) to PGRs.
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Flowering Poppy Anemones
Greenhouse Product News
March 2003
Meriam Karlsson
Poppy anemones have been grown for years as cut flowers either in fields or greenhouses. Another marketing opportunity is as flowering potted plants. In areas with moderate climates, poppy anemones are also suitable as early spring-flowering bedding plants.
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Salvia nemorosa 'Caradonna' (Perennial Solutions)
Greenhouse Product News
March 2003
Paul Pilon
Salvia 'Caradonna' is a unique cultivar of the reliable genus and species Salvia nemorosa. The violet-blue flowers are similar to other cultivars of this species except they are held on purple stems that provide an added element of texture. In the landscape, it is often used in borders and cut flower gardens where there is full sun to partial shade.
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Brunnera macrophylla 'Jack Frost'
Greenhouse Product News
February 2003
Paul Pilon
Brunnera 'Jack Frost' is a new cultivar of Siberian bugloss discovered at Walters Gardens in Zeeland, Mich. This cultivar was the winner of the Plantarium "Best New Plant Award in 2001." Its most distinguishing characteristic is its frosty silver leaves with green veins and edges.
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Bromeliads: long-lasting tropical color
Greenhouse Product News
February 2003
Rick Schoellhorn
The boom in orchids as flowering potted plants (now listed as the number-two flowering potted plant, just behind poinsettias) and the growing diversity of bromeliad hybrids on the market make it much easier to find reliable sources for some really exotic color. I will look more at orchids sometime in the near future, but for this month I wanted to talk about bromeliads and some of the spectacular, long-lasting hybrids coming on the market.
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Dianthus 'Bouquet Purple'
Greenhouse Product News
January 2003
Paul Pilon
Dianthus 'Bouquet Purple' has been produced as a bedding plant or cut flower for a few years, and it is still underutilized as a perennial crop. Bouquet Purple has many desirable perennial characteristics such as: quick finishing time from plugs, easy flowering that can be scheduled, hardiness in USDA Zones 4-10 and few known cultural problems. Bouquet Purple is a seed-propagated, interspecific F1 hybrid that produces lavender flowers on strong, well-branched stems. Throughout the country, it has been a terrific performer and has been named winner of the 2000 Minnesota Select Perennial award and the 2001 Mississippi Medallion award.
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Producing Ravishing Ranunculus
Greenhouse Product News
January 2003
Meriam Karlsson
In the 1960s and 1970s, efforts were intensified to develop seed-propagated ranunculus. Plants with dwarf growth habits were also singled out during the breeding process to identify suitable seed-propagated selections for bedding and potted plant markets. In 1983, Sakata Seed America, Morgan Hill, Calif., introduced the seed-propagated F1 hybrid series Bloomingdale.
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The Sixth Annual State of the Industry Report
Greenhouse Product News
December 2002
Catherine Evans
Year after year, the Annual GPN/Summit Plastics State of the Industry Report provides the most comprehensive data available about the past year in floriculture. And now ladies and gentlemen, The Sixth Annual State of the Industry Report.
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Anthuriums Reinvented
Greenhouse Product News
December 2002
Rick Schoellhorn
Anthuriums are one of the crops where a lot of changes have taken place in the last 10 years. Breeding has really changed the face of this crop, but also, there are a lot of misconceptions floating around out there that have limited the adoption and use of this wonderful flower. Anthuriums remain one of the crops that most Northern nurseries bring in as pre-finished or finished, but the sparsely flowered forms of years ago are long since replaced by earlier and heavier-flowering varieties.
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Fusarium in Tulips
Greenhouse Product News
December 2002
Bill Miller
In an earlier article in GPN ("Flower Bulb Transportation and Handling," August 2001), the relationships of Fusarium infection, ethylene production and forcing problems were introduced. In this article, we'll review some of the known information on Fusarium infection in tulip bulbs and describe some non-chemical remedies for its management.
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Leucanthemum x superbum 'Becky'
Greenhouse Product News
December 2002
Paul Pilon
Leucanthemum 'Becky' is quickly becoming one of the most common varieties of Shasta daisy in commercial production today. This long-lived variety has gained so much attention that the Perennial Plant Association has selected Leucanthemum Becky as the 2003 Perennial Plant of the Year.
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Employing Communication in Employment
Greenhouse Product News
November 2002
Brandi D. McNally
Two years ago, Tagawa Greenhouses in Brighton, Colo. saw that their production efficiency and product uniformity could be improved through some changes in employee training. By developing a system that integrated training, research and development, and implementation management, they've seen increasing productivity since the beginning of the program. Hiring professional teachers, developing standardized procedures and spending time with individual employees to gain an understanding of their communication levels are just a few of the things they've done to make their training program successful.
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Coreopsis 'Limerock Ruby' Hybrid Tickseed
Greenhouse Product News
November 2002
Paul Pilon
Coreopsis 'Limerock Ruby' is destined to become one of the most sought-after perennials for growers and gardeners across the country. Discovered by Mary Ann Faria of Limerock Plant Farms in Lincoln, R.I., this hybrid coreopsis with unknown parentage brings a new bright red flower to a genus that is dominated by various shades of yellow blooms. With these characteristics and ease of production, Limerock Ruby has the potential to be a classic American perennial.
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University of Florida Field Trials
Greenhouse Product News
October 2002
Rick Schoellhorn
The spring field trials at the University of Florida this year contained 180 cultivars of vegetative annuals, both those more common to southern production and also several focus areas. The goal of these trials is to promote plants that are tolerant of extreme high heat and humidity, conditions common across the southeast sunbelt from Florida to West Texas. Obviously, the season here begins very early in the year and, for some plants, ends a lot earlier as well. The results of these trials can be used to help growers refine their late-season selections where heat and humidity have the biggest impact on crop quality.
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Lamium 'Orchid Frost' Spotted Deed Nettle
Greenhouse Product News
October 2002
Paul Pilon
Orchid Frost is a cultivar of Lamium maculatum, which belongs to the mint family. Unlike most varieties of lamiums, Orchid Frost holds up remarkably well during the summer months, without foliage scorching or being overcome with leaf spots. It bears bright, orchid-pink flowers during both the spring and the fall over its variegated silver foliage.
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Raspberries: A New Greenhouse Crop
Greenhouse Product News
October 2002
Meriam Karlsson and Jeffrey Werner
In an effort to extend local availability and the season for fresh raspberries, greenhouse production should be considered. The targeted local market is for high-value, top-quality, off-season, fresh raspberries, since greenhouse production is expected to be more expensive than conventional field systems.
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Heuchera 'Fireworks' Coral Bells
Greenhouse Product News
September 2002
Paul Pilon
The Native American perennial heuchera has become one of the hottest, most must-have perennial plants for today's gardens. Fireworks is best recognized by its "explosive" display of light, coral-bell-shaped flowers on wiry stems held over the lightly ruffled bronze foliage. It is a prolific and a long-lasting bloomer that continues flowering from May-August and attracts both butterflies and hummingbirds. It has good re-blooming characteristics and can be used as a cut flower.
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Two From the Show
Greenhouse Product News
September 2002
Rick Schoellhorn, University of Florida
This year's Ohio Florists' Association trade show was, as usual, a mind-boggling mix of new crops and production technology. This year there were a couple of booths with something really different and off the map in terms of crops. These
wonderful plants -- Lachenalia and Scutellaria -- hold excellent potential to become high-profit specialty items that are not difficult to master.
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A Primer on Hydroponic Cut Tulips
Greenhouse Product News
August 2002
Bill Miller
In Holland, approximately 30-35 percent of the cut tulip crop is forced hydroponically, and we have been evaluating this production method at Cornell over the past two seasons. While our experiences have been very positive, there are several important details to understand and act upon before a high-quality crop can be produced.
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Primula: an all-time favorite
Greenhouse Product News
August 2002
Meriam Karlsson
The most important primula species in production today include English primrose or acaulis primula (Primula vulgaris, synonym P. acaulis), polyanthus, polyantha primrose or hybrid primrose (P. xpolyantha), fairy primrose or baby primrose (P. malacoides), German primrose or poison primrose (P. obconica) and cowslip (P. veris). Chinese primrose (P. sinensis) is also produced in limited numbers and some interest exists in producing drumstick primrose (P. denticulata) as a container plant.
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Diseases of Perennials
Greenhouse Product News
August 2002
Steve Nameth
Disease control of perennials is very similar to that of herbaceous annuals. Number one is knowing what diseases are important and how to identify them. Before you plant anything, be sure that the material you are planting (seed, corm, rhizome, cutting, etc.) is free from diseases and insect pests. Purchasing propagation material from a reputable producer will help ensure high-quality starting material.
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Taming the Wild Calibrachoa
Greenhouse Product News
July 2002
Erika Berghauer, Jim Barrett and Rick Schoellhorn
As with many vegetatively propagated items, producing Calibrachoa hanging baskets does not come without challenges. Taming vigorous growth to produce a more attractive basket, facilitate shipping and keep plants untangled in a high-density growing situation are concerns. At the University of Florida, we have evaluated the use of growth regulator drench applications to slow the growth of Calibrachoa, which should make this high-value crop more appealing to growers.
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Getting to the Root of It
Greenhouse Product News
July 2002
Paul Pilon
With the advancement of perennial production, many operations are looking at their current fertility programs only to discover the traditional practices used with greenhouse crops aren’t always sufficient with many perennial crops. With a shift in production practices, it is often helpful to review the basics of crop fertility and apply these principles to meet the needs of new crops.
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Pack Trial Curiosities
Greenhouse Product News
July 2002
Rick Schoellhorn, University of Florida
I selected the following plants because they are easy to produce or offer a very specialized look. All of these plants have a place in the component plant world and most will add something different to any container. This is by no means all of the incredible new crops I saw at Pack Trials this year but a good sampling of some new directions in crop development.
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Editors’ Pick of the Pack
Greenhouse Product News
June 2002
Brandi D. Thomas and Bridget White
This month and next, we’ll present the Pack Trials from several different perspectives, starting right here with some of the varieties our editors thought were really outstanding. In order to get good coverage, GPN’s editors took the divide and conquer method — Brandi tackled the Northern sites and Bridget took the South.
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Using PGRs on Spring Bulbs
Greenhouse Product News
May 2002
Bill Miller
In many cases, the real issue for growth regulation of spring bulbs does not come during production but during postharvest. Spring bulb growth regulation is often a case of PGR application in the greenhouse for growth control in the low light and warm interior environment.
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Winner's Circle
Greenhouse Product News
May 2002
Carrie Burns and Elizabeth Pensgard
As tradition dictates, the 2003 winners for next year’s growing season have been chosen from the following: All-America Selections, Fleuroselect and All-America Rose Selections. Judges for all three associations used a standardized grading system that scored how well the variety performed during the trialing period, measuring disease-resistance, hardiness, color and novelty in test gardens across the United States.
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Virus Diseases of Petunia
Greenhouse Product News
May 2002
Steve Nameth
The purpose of this article is to bring the reader up to speed on the subject of petunia viruses and the diseases they cause in this popular ornamental crop.
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Forget-me-not as a Potted Plant
Greenhouse Product News
May 2002
Meriam Karlsson
Initial studies on the opportunity to produce forget-me-not as a flowering potted plant are promising. For best plant development and flowering, day length, temperature and light condition following the cold treatment still need to be evaluated. Consumer acceptance of locally produced flowering potted forget-me-not has been overwhelming. The demand for special occasions and the scarce availability suggest consumers are willing to pay a premium price for flowering potted forget-me-not.
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Advanced Height Control of Perennials
Greenhouse Product News
April 2002
Paul Pilon
Unlike most greenhouse crops, perennials consist of a diverse array of plant species (literally thousands of them). Until recently, relatively little research has been conducted with perennials; therefore, the availability of high-quality cultural information is almost nonexistent. Consumer popularity, increased competition and stricter quality specifications have helped make controlling the height of perennials a real challenge for today’s growers.
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Adding a Perennial Turn
Greenhouse Product News
March 2002
Bridget White
Sponsored by the Perennial Plant Association, the “June is Perennial Gardening Month” program is designed to extend the home gardening season for perennials through the promotion of summer- and fall-blooming varieties.
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Plectranthus: Coleus’ Cousin
Greenhouse Product News
February 2002
Richard Schoellhorn
With all the well-deserved attention that coleus hybrids are
receiving for their landscape and interiorscape performance, it seems like a good time to take a look at some of the closer relatives of coleus that have the same strong characteristics and solid performance.
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Producing Vegetative Petunias and Calibrachoa
Greenhouse Product News
February 2002
John M. Dole, Brian E. Whipker and Paul V. Nelson
In the following article we will discuss how to cost-effectively grow petunias and calibrachoas with an emphasis on the areas we have been researching: propagation and growth (vine) control.
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GROWER 101: Disease Primer, Part III: Fusarium
Greenhouse Product News
November 2001
Jim McLaughlin
An unstoppable force and dreaded opponent for any grower, Fusarium is difficult to spot and even more difficult to protect against. Fusarium can ruin a beginning grower’s love for floriculture. Not only is it hard to find the fungus, but it also strikes quickly and causes almost instant damage to your plants. The following helpful hints will arm the beginning grower with the tools he or she needs to identify Fusarium and stop its growth.
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Black-Eyed Susan: A Novelty Potted Plant
Greenhouse Product News
November 2001
Meriam Karlsson
Rudbeckia, or black-eyed susan, is a well-known perennial garden plant. A combination of pinching and growth regulator application achieves the most uniform flower development for dwarf rudbeckia cultivars produced as potted plants.
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Solving the Perennial Problem
Greenhouse Product News
October 2001
Gary Hickman
More and more growers are supplementing their bedding plant mix with perennials, and they are learning that with this new crop comes many of the same old problems. Research from the UC Cooperative Extension points growers in the right direction for height control on many common perennials.
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Life After Labor Day
Greenhouse Product News
September 2001
Ann Hancock
In late August, September and October, there isn't a lot happening in most perennial borders
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Factors Affecting Postharvest Quality of Cut Lillies
Greenhouse Product News
September 2001
Susan S. Han
The number of lily bulbs imported to the United States from The Netherlands for both professional forcing and garden usage is up 44 percent. To keep that number moving in the right direction, consumers need exposure to quality lillies. New research from the University of Massachusetts will ensure the quality of your cut lillies.
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Figuring Out Fertilization
Greenhouse Product News
September 2001
Marc van Iersel, Bodie Pennisi and Paul Thomas
Understanding how to perform a few simple tests can help your fertilization program from interfering with your crop schedule and save your margins.
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Size Control for Lantana
Greenhouse Product News
September 2001
Jim Barrett and Rick schoellhorn
Lantana may be gaining popularity with consumers, but its spreading habit is causing headaches for growers. Here are some treatments to stop lantana spread.
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Herbs Amid the Foliage
Greenhouse Product News
September 2001
Brandi Danielle Thomas
A history of Disney-inspired experimentation led one grower off the well-worn tropical path toward a bright future in specialty plants.
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Flower bulb Transportation and Handling
Greenhouse Product News
August 2001
William B. Miller
You may not give much thought to the journey your bulb shipment takes from the fields in Holland to your greenhouse. Being aware of the steps in the process can help you identify and prevent potential problems before beginning.
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Growing the Newest Poinsttia Cultivars
Greenhouse Product News
August 2001
By Jim Barrett and Allen Hammer
Breeders have introduced a large number of potentially important new poinsettia cultivars in the past two years, and this fall many growers will be producing some of them for the first time.
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Providing Fall Pansies with Proper Nutrition
Greenhouse Product News
July 2001
By Brian E. Whipker, Todd J. Cavins and James L. Gibson
By testing your pansies’ root substrate, you can steer clear of unnecessary nutrient deficiency or toxicity symptoms and keep your crops on schedule.
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Grower 101: Western Flower Thrips
Greenhouse Product News
July 2001
By D. Casey Sclar, Ph. D.
Western flower thrips are very difficult to control, particularly in greenhouse situations. Thrips are found in many crop environments, both indoor and outdoor, and can survive the harshest winters in the Northeast.
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How much Light do Bedding Plants Really Need?
Greenhouse Product News
July 2001
Veronda B. Holcombe, Kelly Lewis and James E. Faust
Producing the best quality plants at the best possible price requires a basic understanding of light requirements – and how to compensate for less than perfect light quality.
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Culture Tips for Heuchera
Greenhouse Product News
October 1998
Dan Heims
These tough perennials, currently enjoying a renewed wave of interest, are poised to join hostas as indispensable shade plants.
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