House & Garden’s Top Booster is an extremely powerful flowering nutrient which will amaze even the most experienced grower. By giving the plant the impression that the final phase of its life cycle has begun, Top Booster helps induce more aggressive late flowering cycle. Plants continue to form flowers and fruits for the remainder of the flowering period without concentrating energy on vegetative leaf growth. The early triggering of aggressive flowering allows the plant more time to develop larger and more robust yields. 1 liter.