Superthrive…the original, the classic vitamin B-1 fertilizer additive. Add Superthrive to your regular fertilizer for extreme growth. Superthrive contains unique normalizing vitamins and hormones. Superthrive is a world champion activator, reviver, transplanter and grower. Its super concentrated so even a drop goes a long way – 1 Tablespoon per 15 Gallons. Great for everything green…indoor/outdoor plants, seedlings, bulbs, trees, lawns. Superthrive is a NON-Pesticide, NON-Polluting additive that contains 50 instant biousables normal pure complexes.