SUPERthrive® 2.5 GallonSUPERthrive 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 polluting50 biousable normal pure complexes. Super concentrated! 1 Tbsp per 15 gallons!