Advanced Nutrients Big Bud Powder is the world's best-selling bloom booster, now concentrated into a water-soluble powder. It delivers precise, highly absorbable ratios of phosphorus and potassium exactly when your flowers need them most, without the phosphorus toxicity risk that cruder PK boosters carry.
The 0-15-35 formula is built from monopotassium phosphate, potassium sulfate and whey protein hydrolysate, chosen for how readily plants can take them up. The result is heavier, denser flowers and stronger floral structure through the critical mid-bloom stretch.
Simple Mans Definition Of What This Does: more usable PK, delivered cleanly, so your buds pack on weight instead of stalling out.
- 0-15-35 NPK: a precision potassium and phosphorus ratio built for bud weight and density
- Sourced from monopotassium phosphate, potassium sulfate and whey protein hydrolysate for high absorption
- Concentrated water-soluble powder: dissolves fully, stores easily, and goes further per litre than liquid PK boosters
- Works across hydroponics, coco and soil, and every major system: aeroponics, drip, NFT, flood and drain, DWC
- Compatible with pH Perfect and non pH Perfect base nutrients, including other brands
- Contains no banned plant growth regulators: no paclobutrazol, no daminozide
This is Advanced Nutrients' best-selling bloom booster worldwide, and it's an easy one to forget until week 2 of flower is already underway. The application window is tight, just weeks 2 to 5 of bloom, so it's worth having a tub on the shelf before flowering starts rather than scrambling for it mid-cycle.
Application: Dissolve 0.5g per litre of water and apply during weeks 2 to 5 of the flowering stage only. Many growers pair it with Bud Ignitor to kick off bloom and Bud Candy alongside it, then move on to Overdrive for the final finish.
- Dilution / Dose
- 0.5g per litre of water, applied during weeks 2 to 5 of flowering.
- When To Use
- Bloom stage, weeks 2-5 only. Stop before switching to a finishing flush.
- Substrate Fit
- Hydroponics, coco and soil; compatible with pH Perfect and non pH Perfect base nutrients, including other brands.
- Grower Notes
- Pairs with Bud Ignitor and Bud Candy. Prefer a liquid PK booster? See Big Bud or the coco-tuned COCO Big Bud. When week 5 ends, switch to Overdrive to finish.