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!