Dyna-Gro DYBLM008 Bloom Fertilizers, 8-Ounce Dyna-Gro bloom 3-12-6is a low nitrogen, high phosphorus formula containing all 6 essential macronutrients Formulated to encourage development of large, vibrant blooms and is ideal for roses, orchids, African violets, and other flowering plants Apply before flower buds appear to help initiate flowering