Foxfarm, lb, open sesame, soluble fertilizer, early flowering high phosphorus formula designed to bring plants into bloom, provides the optimal level of nutrition with minimal salts & other residue buildups, whether you're growing works at the root zone in hydroponic systems, containers, or gardening in ordinary soil, & delivers targeted nutrients when the plants need them the most, feed with open sesame at every other watering, starting at about the fifth or sixth week of a plant's life, takes just a few weeks of open sesame to get stocky, sturdy, compact, high producing plants & buds that are ready to burst.