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SUPERthrive® now includes kelp, which enhances the timeless formula with nutrition from the sea. Just add SUPERthrive® to fertilizer for growth! SUPERthrive®: World Champion activator, reviver, transplanter and grower. SUPERthrive® is a non-toxic vitamin solution. It works directly on seeds and roots to create vigorous roots and robust plants. Non-Pesticide, non-polluting—50 biousable normal pure complexes. Super concentrated! 1 Tbsp per 15 gallons!