Farmer's Pride Organic Blend Grow 4-0-1 is an organic based nutrient formula that is derived from the finest ingredients available. High nitrogen bat guano originating from Southwest Texas, blood meal, and fish meal provide the bulk of the nitrogen in a 50/50 soluble/insoluble ratio in this product. Farmer's Pride Grow will stimulate plants to produce massive vegetative growth. Farmer's Pride Organic Grow also contains high quality plant available molasses which raises Brix levels through the roof! Kelp meal provides the necessary minerals and trace elements that plants and soil microbes need to thrive. Bone Meal and Calcium Carbonate provide the Calcium in this product. Farmer's Pride Grow is designed to be used with Farmer's Pride Bloom and Micro.