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!