Osmocote Outdoor & Indoor Smart-Release Plant Food is backed by professional growers world wide. Apply a single application of Osmocote's extended time release formula will feed continuously for up to nine months. Features a unique nutrient delivery system that eliminated over- or underfeeding. Easy to use on Gardenias, Roses, Daises, Bulb, Palms, Ivies, Philodendrons, Fichus, Begonias, Ferns, Violets and many other perennials. Just apply once and it will last all season.