Using Gibberellic Acid and Ethephon to Induce Flowers on Tropical Foliage Plants

Plant growth regulators (PGRs) are chemical compounds that alter plant growth and development by modifying natural hormonal action. Some PGRs are naturally occurring hormones, while others are synthetic hormones that mimic or interfere with the action of natural plant hormones. PGRs can be used to increase or retard plant height, prolong or break dormancy, prolong flower and plant shelf-life, prevent leaf yellowing, abort flowers, or promote rooting, branching, and flowering. - AGROVOC

In 2025, as an administrative change, the UF/IFAS Department of Environmental Horticulture was sunsetted. Faculty and staff were rehomed to other departments, primarily the Departments of Horticultural Sciences and Agronomy (turf), and the School of Forest, Fisheries and Geomatics Sciences (arboriculture).