Sea Cal is a highly concentrated growth enhancer and calcium supplement that offers vital nitrogen and calcium in the specific ratios necessary during early plant development. Calcium is very important during a plants vegetative and flowering cycle, controlling aspects of cell wall structure and permeability. Sea Cal also contains Potassium silicate and Humic acid. By thickening and strengthening cell walls, Potassium silicate protects plants from extreme temperatures, plant stress, harmful fungi and dangerous pathogens.