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  • Energy-efficient annuals 1: Perfecting temps and light

    Published on March 29, 2009
    Learn the concepts of how temperature and daily light integral influence growth and flowering of annual bedding plant crops.

  • Purpling of leaves

    Published on January 8, 2021
    There are many specialty crops that naturally have red, purple or almost black foliage, while others turn those colors when conditions are unfavorable. This article briefly reviews the factors that influence the purpling of leaves.

  • Managing temperature during propagation

    Published on December 19, 2014
    Temperature primarily drives the rate of root and shoot development while light provides the energy to promote that growth. When one of these environmental factors is not optimized, rooting is delayed.

  • Purple vs. pink vs. white LED fixtures

    Published on September 10, 2018
    LED fixtures that emit a purplish light are usually less preferred by people, but are often the most efficient at converting electricity into light useful to plants.

  • Basics of Monitoring: Media pH, EC & Water Quality

    Published on November 9, 2011
    Developing a comprehensive monitoring program is key to keeping your production on track, but only a handful of growers are as watchful as they should be. This series will walk you through how to produce quality plants on time for every season.

  • ZZ plant is an excellent choice for tough indoor use

    Published on January 8, 2007
    ZZ plant (Zamioculcas zamiifolia) is a popular indoor plant because of its glossy, dark-green foliage, limited disease and insect problems, and performance under low light and restricted water availability.

  • Paper or Plastic.

    Published on October 9, 2009
    Does a conversion from plastic pots to Ellepots make sense for you? Researchers conducted an analysis to find out.

  • Vernalization: Life in the cold (Vernalization part 2)

    Published on January 29, 2006
    In part 2 of a 5-part series of articles on vernalization of herbaceous perennials, this article discusses juvenility and different methods of delivering cold treatments to plants.

  • Fanning uniformity in the greenhouse

    Published on May 17, 2008
    Horizontal airflow fans, which help create a more uniform greenhouse environment, can be a boon if used properly.

  • DLI 'requirements'

    Published on May 10, 2019
    This article provides daily light integral (DLI) guidelines to produce plants of at least moderate quality, assuming plants are grown at moderate temperatures.

  • Red and Blue Radiation: Explore the Efficacy of LED Supplemental Lighting for High-Wire Vegetable Transplants

    Published on August 10, 2020
    High-quality vegetable transplants for high-wire production require a minimum DLI of 13 mol or greater. Therefore, supplemental lighting is commonly used to increase the DLI during light limited times of the year. Can LEDs be utilized?

  • Maximizing photosynthesis, minimizing respiration

    Published on March 7, 2021
    Conceptually, anything growers can do to increase photosynthesis and decrease respiration can increase growth, leading to thicker stems, faster rooting, more branches, and more and larger flowers and fruits

  • Scheduling bedding plants for energy-efficient production

    Published on February 22, 2012
    In this article, we discuss the effects of average daily temperature and starting size of plugs on flowering time and crop quality of a variety of annual bedding plants.

  • Temperature on chyrsanthemum

    Published on July 17, 2013
    Once flower buds are visible, adjusting the growing temperature has little or no impact on time to flower unless plants are held at low temperatures (50° F or less).

  • Revisiting poinsettia cold finishing up north.

    Published on August 9, 2010
    Cold finishing makes sense for certain poinsettia cultivars. Find out which ones cold finish best, best practice strategies and how much money you can save.

  • Measuring greenhouse temperature

    Published on March 18, 2011
    The single largest advantage of using greenhouses to grow ornamental and food crops is the ability to provide desirable temperatures for plant growth and development.

  • Greening up calibrachoa & petunia

    Published on March 6, 2014
    greening up calibrachoa petunia

  • The economic viability of LED lighting

    Published on October 7, 2016
    Determine whether LED lighting is right for your operation by considering seven important factors that impact return on investment.

  • Boom lighting

    Published on July 23, 2015
    We have developed some general guidelines based on limited research with simulated boom lighting, studies with cyclic lighting, and grower experiences.

  • Rapid flowering of pansy

    Published on March 22, 2010
    Pansy has a unique photoperiodic flowering response. What can be done when varieties don’t flower uniformly or on time?