The trip from the greenhouse to a garden centre can damage plants, causing them to lose their esthetic appeal and selling poten- tial. Especially vulnerable are plants that are too tall, where the stalks and leaves can bend and break when packed intoa transport truck and driven a considerable distance. University of Guelph researchers are testing different ways to control plant height, while maintaining quality and esthetics. Commercially registered growth retardants are traditionally used to control plant height. But it's now feared these products could either be removed from the market (by manufacturers not renewing registration), or they will be eliminated for use by Health Canada.
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