Vermicrop Organics VermiKelp is a microbial super food. Ascophyllum Nodusum has been used for centuries to nourish the microbes in soil, completing a process often overlooked; feeding the soil. VermiKelp results in better root development through the stimulation of microbial activity, these microbes break down fertilizers, the result being increased nutrient availability. A highly renewable resource, Vermicrop Organics VermiKelp will bring out the deep green color of aquatic plants in your back yard or indoor garden.