March 26, 2014
Producing Hydroponic Culinary Herbs
Switching over to tomato, cucumber or pepper production can be a big change for any greenhouse. These crops have long production cycles and may not fit as easily into windows of opportunity between ornamental production cycles. However, culinary herbs are a relatively quick and can easily be grown in simple hydroponic systems.
September 12, 2012
Produce High-Quality Rooted Cuttings
Whether you are a propagation specialist or are rooting cuttings for your own in-house production, the goals of propagators are the same — to efficiently produce high-quality rooted cuttings. In order to meet the spring and early summer market dates for flowering bedding plants, cuttings are typically rooted in mid- to late-winter and early spring when the outdoor daily light integrals (DLIs) are at seasonally low levels. The DLI inside a greenhouse is often further reduced as a result of glazing material and interior structures, as well as hanging baskets suspended above benches to maximize production space. Research has recently shed some light on the impact of light levels during propagation of New Guinea impatiens and petunias. However, the number of species and cultivars grown from cuttings is quite large and diverse. Therefore, we wanted to better understand the impact of DLI during propagation on growth and quality of several […]
September 12, 2012
Reduce Flowering Time
This is the second article in a two-part series looking at the effects of light during cutting propagation. While the first article focused on the effects of daily light integral (DLI) during propagation of rooted cuttings, this article will focus on finished plants. We wanted to see how DLI during propagation affected growth and flowering after transplant, as well as identify how the DLI during propagation interacted with the DLI during finishing to influence crop timing and quality. Study 1: Lighting During Propagation Cuttings of Angelonia ‘AngelFace White,’ Nemesia ‘Aromatica Royal,’ Osteospermum ‘Voltage Yellow,’ and Verbena ‘Aztec Violet’ were stuck in 105-cell trays and placed in a propagation greenhouse with an air and substrate temperature set point of 73°F and the average DLI was maintained at about 5 mol•m¯²•d¯¹. After seven days, cuttings were placed under a range of DLIs, from 1.2 to 12.3 mol•m¯²•d¯¹, achieved using supplemental light from […]
August 14, 2012
When Fertilizing, Don’t Neglect The Root Zone
Bedding and potted plants are traditionally fertilized daily or several times a week with water soluble fertilizer (WSF) applied in the irrigation water. With WSF, the fertilizer components are in a form that can be directly absorbed by the plant. This also means the fertilizer components can immediately impact the soluble salts and the pH of the substrate. WSF are also in a form that can readily be leached from the root zone. When using controlled-release fertilizers (CRF) the nutrients are primarily held within the CRF prills and are not available for plant absorption until they are released slowly over time. Thus, when a CRF is added to the substrate, its effects on pH and salts are not immediate. Instead, they occur slowly over time as nutrients diffuse from the prills. Use the results from three studies to better manage the root-zone pH and electrical conductivity (EC) when using CRFs. […]
July 18, 2012
High Tunnels: Grow Better Bedding Plants In Cold Weather
Bedding production begins in mid- to late-winter and early spring in the northern half of the U.S., when outdoor air temperatures and light are at seasonally low levels. During this time, greenhouses must be heated to maintain desirable production temperatures. The costs involved can be huge. Energy for heating in northern climates accounts for 10 to 30 percent of the total operating costs of commercial greenhouses. So it makes sense to find alternative strategies. Our research shows that high tunnels are a viable alternative for plant producers. High tunnels are an unheated polyhouse or hoop house covered with a single layer of plastic, although a double layer of plastic or additional covering inside may be used. In floriculture, high tunnels are most commonly used in cut-flower production for season extension and protection against frost, rain and wind. They are also used to produce and overwinter containerized herbaceous and woody perennials. […]
January 6, 2012
Height Control For Easter Lilies
Flurprimidol drenches have been shown to successfully control height of oriental lilies and Dutch bulbs such as hyacinth, narcissus and tulips, but there is no data that shows how effective flurprimidol drenches are on Easter lilies. Researchers decided to find out.
July 25, 2011
Graphical Tracking: The Basics Of Monitoring
Figure 2. Long, thin and weak poinsettia stems due to tight spacing (shade avoidance response) on the greenhouse bench. Scroll down to see the rest of the figures for this story. Controlling height is a major challenge for growers with most floriculture crops. Unfortunately, not only do environmental growing conditions vary from year to year due to the weather, but growers must continuously adjust their height management strategies due to the introduction of new cultivars, shipping dates and container sizes. We are all aware of the consequences of crops that do not meet or exceed maximum height requirements: poor quality and damaged plants, higher shipping and labor costs and, ultimately, shrink. So how do you make decisions related to height control in your greenhouse? Relying on your plant growth regulator (PGR) crop notes from last year may not be the best strategy to follow. The first step in making educated […]
June 14, 2011
Monitoring The Greenhouse Environment
How do you make decisions related to crop production in your greenhouse? The most common decision-making aids are notes made during previous production seasons and reacting to problems that arise. While using notes and reacting to situations as they arise are commonplace, each season and year is going to be different than the previous one. The first step toward making educated decisions and avoiding problems is to monitor factors that affect your crop production. Constant monitoring can help growers make decisions and help manage the causes of problems as opposed to treating symptoms. This is the first article in a series focused on monitoring the greenhouse environment, plant growth and development, substrate pH and EC and water quality, and greenhouse pests and diseases. These articles will provide concepts and ideas to help you develop a comprehensive greenhouse monitoring program. This particular article will focus on monitoring the greenhouse environment. Because […]
February 26, 2017
AgBiome Will Enter the Ornamentals Market With a New Bi…
AgBiome, a young company with teammates steeped in decades of experience in the crop protection world, sees an opportunity to bring products to market that fill the existing gaps in plant protection. The company has partnered with SePRO to market and distribute Zio, a biological fungicide expecting EPA registration this spring.
February 24, 2017
AmericanHort Names New Board Members and Officers for 2…
The new board members are Steve Castorani of North Creek Nurseries, Tom Hughes of Hughes Nursery and Landscaping, and Cole Mangum of Bell Nursery.
February 22, 2017
Emerging Industry Leaders Earn Business Management Cert…
Dr. Charlie Hall, Ellison Chair for International Floriculture at Texas A&M University, recently announced the graduation of the fourth cohort of the elite Executive Academy for Growth & Leadership (EAGL) program for nursery and greenhouse growers.
February 21, 2017
Learn How Drones Could Eventually Replace Bees in Polli…
Researchers in Japan are using the principle of cross-pollination in bees to make a drone that could potentially transport pollen between flowers.
February 21, 2017
Ian Baldwin: 2017 is Off to a Strong Start For Plant Re…
Many garden retailers are telling garden retail consultant Ian Baldwin that sales and the consumer’s attitude toward spending have been very strong the last two months.
February 20, 2017
5 New Varieties Shaking Up the Poinsettia Tradition
With poinsettias trending toward non-traditional colors, growers may find new opportunities to spread sales beyond the winter holidays. Here are five of the newest euphorbia varieties to hit the market that may play a role in redefining the future of the poinsettia market.
February 17, 2017
How to Keep Customers Coming Back With Top-Notch Servic…
A recent article on Forbes.com outlines seven ways organizations can take their customer service from good to great and beyond.
February 17, 2017
Proven Winners Makes Improvements to Its Retailer Certi…
Understanding the challenges of training new and seasonal staff at independent garden centers, Proven Winners says it is working to equip managers with tools to prepare their employees to better handle customers’ questions and boost their confidence in selling plants this season.
February 17, 2017
Industry Veteran Tom Foley Discusses His New Role as Vi…
Foley, a greenhouse industry veteran who was most recently with EuroAmerican Propagators, will be responsible for North American sales of WaterPulse’s patent-pending capillary mats and associated irrigation systems to nurseries and growers.
February 17, 2017
Dan and Jerry’s Greenhouse Buys Iowa-Based DeJong Green…
The acquisition will allow Dan and Jerry’s, a bedding plant grower headquartered in Minnesota, to extend its seasonal product offerings and service a new customer base with local distribution.
February 16, 2017
Pleasant View Launches Updated Website for its Savor Ed…
The site is designed to offer a friendly and informative vehicle that delivers product information in an easy-to-navigate format.
February 15, 2017
Syngenta Introduces Two New Flower Series for 2017
‘Sunfinity’ Sunflower produces multiple branches with numerous flowers that bloom all season long, while ‘Obsession Cascade’ Verbena quickly fills containers with vibrant flower patterns.