Plant Growth Regulators for Coleus
Coleus are excellent foliage plants and often produced in cell packs, containers, and mix combination planters. However, controlling plant growth can be challenging. The general rule of thumb is to produce a containerized plant that is 1.5 times the height of the container, but this of course varies by cultivar, container size, and market. Some cultivars vary in plant vigor and do not branch freely, and thus require pruning. Plant growth regulators (PGRs) are excellent tools that can assist growers with enhancing quality of their containerized plants such as controlling plant growth and/or induce branching without wounding the plant. The 2021-22 Plant Growth Regulators for Annuals is an excellent resource if growers need assistance in selecting PGRs and application rates to control growth of coleus or other flowering bedding plants. If you need help mixing PGRs, then check out the PGRMix Master. It was designed to help with all your mixing needs.
W. Garrett Owen
Assistant Professor of Sustainable Greenhouse and Nursery Systems, The Ohio State UniversityW. Garrett Owen is an Assistant Professor of Sustainable Greenhouse and Nursery Systems in the Department of Horticulture and Crop Science at The Ohio State University. He has an appointment in research, teaching and Extension. His area of expertise is plant nutrition; plant growth regulation; and production problem diagnostics.
