Growth Regulators Using growth regulators throughout the growing season is an excellent method for controlling plant size during production, but also is very helpful to improving the overall quality attributes and shippability. Treated plants also will have a longer shelf life than untreated plants. Fine America PGR guide for containerized herbaceous perennials is a useful resource for any application of PGR for perennials, containing detailed guidance for a wide range of plants to modify plant height and branching.
The current on label approved PGRS for use on protected ornamentals are: B-Nine SG / Dazide Enhance (Daminozide) , Pirouette (Paclobutrazol) and Configure (6-benzyladenine) Cerone.
Off label approval lists include a wide number: Clayton Truss, Freeze, Moddus, Moxa, Nexus etc containing Trinexapac ethyl, Cerone/Coupon (ethephon) , CeCeCe (Chlormequat), Regalis (Prohexadione Calcium).
