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September 22, 2015
A common question I’m asked is what the best lighting strategy is to promote early spring flowering of bedding plants and/ or herbaceous perennials. The answer to such a question is situational, depending in part on the crops being grown, the...
September 22, 2015
In recent years, coreopsis has become one of the most popular genera of perennials. It’s easy to see why when you witness their eye-catching display of vibrant blooms. The past decade has brought a colorful palette of new coreopsis cultivars to the...
September 22, 2015
It’s not that often a new variety comes along that captivates the industry with not only its stunning appearance, but also possesses the attributes of easy-to-grow, long-lasting shelf-life, great garden performance throughout the season, and the...
September 22, 2015
At Pacific Plug & Liner we continually strive to be one of the must-see stops along the Spring Trials circuit. Our goal is to display a wide selection of new introductions, not only our own but many from different vendors, including Cohen,...
September 22, 2015
Peat has played an important role in horticulture for decades, but concerns over rising costs and environmental effects caused by its harvest have spurred on efforts to find alternative media components. Similarly, environmental issues related to...
September 22, 2015
For the past 16 years, GPN and Nexus Greenhouse Corp. have been recognizing outstanding college students with the GPN/Nexus Intern of the Year Scholarship. Each year we get an outstanding crop of applicants — students that are doing amazing things...
July 09, 2015
Many large-scale commercial growers utilize automated booms to deliver water, nutrient solutions, pesticides and/or plant growth regulators to crops. Some growers have also installed lights on their booms to deliver photoperiodic lighting to promote...
July 09, 2015
With its aromatic herbal attributes and landscape presence, the demand for lavender continues to increase.  English lavender (Lavandula angustifolia) is the most commonly grown lavender, but Spanish lavender (Lavandula stoechas) has many...
July 09, 2015
Pinpoint accurate forecasting helps Bela Flor Nurseries meet demand without spoilage or delays. When it comes to customer satisfaction, few criteria rank as high as receiving things on time. Whether you’re talking about your hourly news fix, your...
July 09, 2015
Today, fresh water supplies for agriculture/horticulture are a serious matter. For some, future supplies are questionable. Many growers are faced with water use restrictions. It’s not a surprise that officials often feel that water is needed more...
July 09, 2015
In June, you read about some of the overall trends we observed during our week-long trek through California. This month, we would like to focus on the impressive new varieties that made their debut in April. These introductions stood out and grabbed...
July 09, 2015
When I was young, the United States had a vital localized independent distribution of flowering plants. Big box stores did not exist, and yes we still wrote using stone tablets, and bread was a nickel a loaf… but in all seriousness, even in the Los...
July 09, 2015
In May, the National Association of Landscape Professionals (NALP) surveyed more than 2,000 adults to “understand attitudes and perceptions about yards and landscapes.” More specifically, they wanted to find out how important it is to have a yard,...
June 10, 2015
Light and temperature are two of the most commonly manipulated environmental factors in greenhouse crop production. Supplemental lighting is useful during light-limiting conditions, while during high-light conditions, shading is often used to help...
June 10, 2015
The Go Go series is available in seven colors. Orange is pictured. Here I go again, this month I’m featuring another perennial that is not fully hardy across much of the country. Why do I occasionally feature such plants? Well sometimes there are...
June 10, 2015
Growers like Sustainable Local Foods use LED lighting to produce plants year round while keeping costs down. As many growers have found out over the course of human history, even the sun needs some help from time to time. It’s estimated that between...
June 10, 2015
'Veranda Lavender’  Roses have long captured the imagination, from William Shakespeare’s “A rose by any other name would smell as sweet” (“Romeo and Juliet”) or analogies about life using the imagery of a rose – “Some people grumble that roses...
June 10, 2015
Preparation of water samples to determine how PGRs influence the final spray solution pH. Plant growth regulators (PGRs) have become a common and necessary tool in greenhouse production to produce plants of appropriate size, quality and in flower...
June 10, 2015
The most common diseases on any group of ornamentals is based on a number of factors including how the plants are propagated, where they are utilized (landscape, indoors, bouquets) and what conditions the plants require for best growth. Herbaceous...
June 10, 2015
Each spring, growers and other horticulture professionals travel the California coast to get a sneak peek into the new varieties and trends that are in the pipeline for the coming season.   Each year, Team GPN joins in the week-long adventure...