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Using Plant Growth Regulators on Containerized Herbaceous Perennials


430-103 (HORT-281)

Authors as Published

Authored by Joyce G. Latimer, Retired Extension Specialist, Greenhouse Crops; Virginia Tech, Holly Scoggins Retired Associate Professor, Herbaceous Perennials Program, Virginia Tech, and reviewed by Eric Stallknecht, Greenhouse Production Specialist, Hampton Roads Agricultural Research and Extension Center, Virginia Tech (first published June 2012, last reviewed August 2023)

This publication is available in an enhanced digital version and PDF.

There is a tremendous diversity of herbaceous perennial plant species being grown for both the retail and landscaping sectors of the industry. Because of the diversity in species grown, there is much more unknown about perennials production than is known. Growth regulation is of particular concern. In production settings, as well as in retail locations, herbaceous perennials grown in pots tend to stretch and become leggy or simply overgrow their pots before their scheduled market date. These plants are less marketable, and harder to maintain. Many growers resort to pruning, which is not only costly in terms of labor, but also delays plant production two to four weeks.

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Publication Date

August 21, 2023