Overdrive is a precision late-stage PK booster designed to maximise flower density, firmness, and structural weight in the final weeks of the flowering phase. Applied after Big Bud, it acts as a finish-phase hardener — ensuring plants reach their full structural and visual potential before flush.Key Benefits NPK 1-5-4 formula delivers targeted phosphorus and potassium for late-stage flower development Enhances flower firmness, density, and overall floral weight Compatible with pH Perfect® — no pH adjustment required Works across soil, coco, and hydroponic growing systems Seamlessly integrates with all Advanced Nutrients base and additive programmes How to UseApply during the final 2–3 weeks of the flowering phase, just before flush. Dose at 2ml per litre of nutrient solution. Add after your base bloom feed and mix thoroughly before applying.Available Sizes250ml | 1 Litre | 5 Litres | 10 Litres