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May 09, 2013
Originating from the Rocky Mountains and the Southwest United States, the penstemon Riding Hood series has exceptional winter hardiness (Zone 3, -4° F) that is a rarity among penstemons. Bred by Molter BV, the first variety in this series was...
May 09, 2013
Over the last couple decades, gaura has increased in popularity. However, with its flower power and landscape resiliency, this perennial is often underutilized.Through plant selection and improved genetics, many of today’s cultivars offer superior...
May 09, 2013
During the past 20 years, rose downy mildew has become a serious problem, causing significant losses to growers almost every year. The disease has been found in nearly every state across the United States (and Canadian provinces). It does not occur...
May 09, 2013
Choosing which crops to add to your production each year involves some risk. Growing exceptional plants is critical to your business and reputation, and the success of your plants relies on various factors such as tolerance to weather, maintenance...
April 16, 2013
Lobularia Stream series is bred By Danziger and comes in four beautiful and fragrant colors — ‘Lavender Stream’, ‘Silver Stream’, ‘Summer Stream’ and ‘White Stream’. Two new varieties will be added for the 2013-14 season — ‘Purple Stream’, a dark...
April 16, 2013
Sixteen years. Although the popularity of helleborus has increased since the Perennial Plant Association selected Helleborus x hybridus as the 2005 Perennial Plant of the Year, Chris Hansen has been working diligently for 16 years hand-crossing and...
April 16, 2013
The plant growth regulator (PGR) Florel has been used for many years as a foliar spray on a wide variety of ornamental crops as well as some food crops. Until recently, Florel was only thought to be effective when applied as a foliar spray. At the...
April 16, 2013
Black root rot (BRR) caused by the fungus Thielaviopsis basicola is a very persistent and damaging disease for growers of bedding plants, herbaceous perennials and some woody species — including poinsettias. This disease is seen most often on pansy...
March 19, 2013
The snapdragon Candy Showers series, available in five bright colors, is the first trailing snapdragon series available from seed and represents a completely new item for spring and fall sales. Sakata Ornamentals is recognized as a world leader in...
March 19, 2013
Creeping phlox is a widely grown perennial groundcover mostly recognized by the beautiful masses of color it produces in the early spring. It’s hard to beat the stunning display of color as the evergreen carpet wakes up after a long winters rest....
March 19, 2013
Like many ornamental plants, perennials are susceptible to numerous types of plant viruses. Growers often jump to conclusions when they hear the word “virus” and don’t consider that plant viruses are often not as destructive or common as diseases...
March 19, 2013
In floriculture, we have long been familiar with Florel sprays, whether for height control on hyacinths or daffodils, to abort flowers and promote of branching in many crops (such as geraniums and fall mums), or to induce flowering in bromeliads....
March 19, 2013
Each year the North American Poinsettia Trials evaluates hundreds of poinsettia cultivars, many of which are new to the market. However, as any poinsettia grower will tell you, selecting the right cultivar is only the beginning. Many decisions have...
February 05, 2013
A plug or liner dip is a plant growth retardant (PGR) application technique in which a tray of finished young plants is placed into a shallow PGR solution for a short period of time.  This allows the growing media to absorb the PGR from the...
February 05, 2013
Westflowers by the German breeder Westhoff is shaking up the vegetative petunia category with its Crazytunias ­— a collection of unique petunias with exciting flower colors and patterns that are grower and consumer friendly. ‘Crazytunia Black Mamba...
February 05, 2013
Westflowers by the German breeder Westhoff is shaking up the vegetative petunia category with its Crazytunias ­— a collection of unique petunias with exciting flower colors and patterns that are grower and consumer friendly. ‘Crazytunia Black Mamba...
February 05, 2013
One of the most recognized and reliable perennials in shade gardens is the old-fashioned Bleeding Heart. When grown under partial shade in well-drained soils with ample moisture, it is hard to beat the flower power and dependability of Dicentra...
February 05, 2013
In September 2009, I visited the Florexpo facility in Paraíso, Costa Rica, and learned all about the 130 million cuttings they produce each year, sanitation protocols, their sustainable practices and so much more. In the December 2009 issue of GPN,...
February 05, 2013
Calla lilies (Zantedeschia) have become a popular greenhouse floricultural crop in the United States, and interest continues to increase for both pot and cut flower production.Callas have long-lasting, elegant flowers and have been a favorite in...
February 05, 2013
You would like your plant’s root system to be in balance with the soil, your growing media. Balance in water, balance in food, balance in microbes and balance in organic/inorganic matter all group together to maintain the health of the roots....