House & Garden Top Booster is a premium flowering stimulant designed to encourage earlier flower initiation, increase flowering sites and maximise the potential for larger, heavier harvests. Formulated with a powerful blend of phosphorus, potassium and EDDHA-chelated iron, Top Booster helps prepare plants for an extended flowering period by stimulating a strong reproductive response early in the bloom cycle.

Top Booster works by creating the effect of an optical drought, signalling to the plant that it is entering the final stage of its life cycle. In response, the plant naturally accelerates flower and fruit production as part of its survival mechanism. This early flowering trigger encourages plants to establish more flowering sites before returning to their normal feeding schedule, giving flowers additional time to mature and increase in size.

Built around a high-quality PK 13/14 formulation, House & Garden Top Booster delivers the phosphorus and potassium required for vigorous flower development. Potassium supports the initiation of flowering and healthy plant function, while phosphorus drives strong flower and fruit formation throughout the bloom cycle. The addition of EDDHA-chelated ironhelps maintain vibrant green foliage by improving iron availability, supporting efficient photosynthesis and overall plant health during flowering.

Top Booster is suitable for use in hydroponics, coco coir and soil-based growing systems, making it an excellent addition to almost any flowering nutrient program. It works alongside your existing base nutrients and flowering additives to help maximise bloom production without complicating your feeding schedule.

For best results, use 1.5mL per litre of water during the recommended stage of flowering. After applying Top Booster for three to four days, resume your standard nutrient feeding schedule. This early flowering stimulus allows plants to continue developing larger flowers and fruits throughout the remainder of the bloom cycle.

Whether you’re growing ornamental flowering plants, vegetables or fruiting crops, House & Garden Top Boosterprovides professional-grade flowering support to help increase flower production, improve crop quality and maximise final yields.