Check the listing for details. Superthrive Hydroponic Liquid Vitamin Solution - Pint. Condition: New. Listed at 37.77 USD. Superthrive Vitamin Solution Superthrive is a highly concentrated non-toxic vitamin solution invigorating all variety of greenery for home gardeners and professionals alike. It is equally suited for hydro-seeding, hydroponics, and foliar spraying. Superthrive maximizes potential by quickly building a strong root base and reducing transplant shock. It replenishes the soil to nourish and encourage the natural building blocks that plants make themselves under optimum conditions. Since 1939, Superthrive remains a primary gardening and grower's tool to promote chemical balance, increase crop yield, secure landscaping, and safely transplant trees of any size. Rate of use: for general weekly/monthly maintenance, mix 1/4 tsp. per gallon (3 oz. per 100 gallons) On Nov-21-16 at 10:01:31 PST, seller added the following information: Add a map to your own listings. FREE Trial !