The Wonder Colourburst Rose Food is a Water Soluble Plant food formulated for the growing of beautiful roses and produces top-quality blooms and greener leaves. Colourburst Rose Food has been formulated specially for roses. It is clean and easy to apply. It provides 10 most essential nutrients required to produce healthy plants with beautiful blooms. Ideal for feeding summer flowering herbaceous perennials and shrubs and can feed plants throughout the year.