Check the listing for details. Bonzi PGR Plant Growth Regulator - 2.5 Gallons. Condition: New. Listed at 717.77 USD. Bonzi plant growth regulator ensures plants stay compact and beautiful to keep them at their peak longer for increased profitability. Keeps plants uniformly compact and strong by reducing internode stretchCan be used on a wide variety of bedding plants, bulb crops, annual and perennial plants, herbaceous and woody ornamentalsCan be applied as a single spray, drench, or preplant bulb soak and provides an excellent margin of safety at all stages of developmentProduces attractive and marketable plants, bringing out the full beauty of ornamentals by keeping them compactMaintains the plant-to-pot size ratio for aesthetically pleasing plants with deeper green foliageTransport is less stressful with less breakage and plants have an extended, enhanced shelf life, where they stay at their peak longer Rate of use: For drench applications, 0.05-0.2 ppm; for preplant bulb soaks, 5-25 ppm; for spray application on most bedding plants, a range of 5-90 ppm is recommended. Please see label for specific instructions and rate ranges by plant species to be treated.Active ingredient: 0.4% Paclobutrazol