BioWeed� is derived from a blend of cold-processed seaweeds that act as a plant and soil vitality enhancer. Seaweeds have long been recognized as stress-reducing agents and powerful plant boosters. BioWeed� encourages prolific root and foliage growth as well as larger flowers and fruits. BioWeed� works synergistically with all fertilizers to promote vigorous, healthy growth. Use with any garden soil, potting mix or other growing media.