BioWeed is derived from a blend of cold processed seaweeds that enhance the vitality of both the plant and soil. Seaweed, and its extracts, have long been recognized as stress reducing agents and powerful plant boosters. BioWeed works synergistically with all fertilizers to promote vigorous, healthy growth. Put simply it is ideal for all plants, at all stages of growth. Compatible alongside all types of nutrients and additives; In hydroponic systems, in any substrate or in your garden.