Undiluted B. Seaweed (0-0-1) is a 100% organic blend of liquefied British Columbian sea kelp (Macrocystis integrifolia) containing over 60 nutrients and growth stimulants. To preserve and sustain the renewable resource, Technaflora harvests its sea kelp by hand and in accordance with government regulations. Premium B. Seaweed won't clog drip emitter lines and is a great supplement for use in hydroponics, soil gardening, organic tea mixtures and as a foliar spray.