Grow More Mendocino Avalanche, 6 GallonFlower hardener specially developed and field tested in the Emerald Triangle of Humboldt, Mendocino and Trinity Counties in Northern California. Helps stimulate flower development in the final bloom stage, for an increase in the size and mass of flowers. Fortified with Norwegian kelp extract, which supplies organic carbon, amino acids and carbohydrates for use on most flowering plants, hydroponic plants, indoor, outdoor, grown in container or field