Height Management of Ornamentals

  • Maximizing PGR spray applications

    Published on April 18, 2010
    Despite the availability of many different plant growth regulators, their spraying methods are generally similar. How can you get the most out of each application?

  • Height control for vegetable transplants

    Published on February 18, 2010
    A supplemental labeling of Sumagic for use on vegetable transplants in the U.S. has made height control less complicated. There are a few other methods that may be helpful, too.

  • Going beyond the surface

    Published on September 18, 2009
    In some cases, adding a surfactant to a plant growth regulator solution can improve the product’s efficacy and increase uptake. How can you know when to use these products?

  • Controlling height with temperature drops

    Published on April 17, 2009
    Temperature drop is the practice of lowering the temperature, typically by 5-15 degrees F, before sunrise. Generally, the greater the magnitude of the temperature drop, the stronger it suppresses plant height.

  • Brushing plants for height control

    Published on February 18, 2009
    “Brushing” plants is proving to be a promising, albeit unconventional, height control technique. When touched or moved, plants release ethylene, which can inhibit elongation.

  • The ABCs of PGRs

    Published on November 18, 2008
    There are now a large number of plant growth regulators registered for use on ornamental plants. This article discusses the various active ingredients and the product names for each.

  • Getting results with liner dip

    Published on November 18, 2008
    In this article, we provide four keys to successful use of using plant growth regulators as liner (or plug) dips.

  • Comparing PGRs

    Published on October 18, 2008
    Plant growth retardants (PGRs) are often used by commercial growers to produce a more compact, higher quality ornamental plant. This article compares the efficacy of different products with the same active ingredient.

  • Improving branching and postharvest quality

    Published on August 18, 2008
    When used properly, benzyladenine (BA) sprays have commercial potential, and can increase the number of tertiary shoots in poinsettia and delay lower-leaf yellowing (chlorosis).

  • PGRs on perennials

    Published on June 18, 2008
    Learn how to choose the right plant growth regulator (PGR) and application method for commercial production of herbaceous perennial crops.

  • Increasing poinsettia size

    Published on October 18, 2007
    Are your potted poinsettias vertically challenged? When applied on young stems before the first hint of color, chemicals can help promote stem extension and take your plants to new heights.

  • Choosing growth regulators doesn't need to be a chore

    Published on October 18, 2007
    More growth regulators with the same active ingredient are available. Read these five considerations to help choose which one will best meet your needs.