B. Seaweed is an optimal growth stimulant for all your plants. exceptional liquid extract is made from 100% pure, organic British Columbia kelp. Sea kelp is the source of more than 60 nutrients, vitamins and hormones that support and strengthen hearty, thriving plants. In addition, sea kelp aids in the absorption of nutrients from the soil. B. Seaweed is ultra-concentrated and must be diluted with water for use in irrigation solutions or as a foliar spray. Ideal as an additive for organic tea mixtures. Versatile b. Seaweed is also a superior soil tonic and can be added to the hydroponic reservoir with confidence.