Description
Not your average PK booster
Himalayan Hardener gives plants elevated potassium and phosphorus during flowering, but instead of cheap ionic monopotassium phosphate, which locks out within hours or days when it reacts with calcium or iron in the feed, it uses polymerised phosphorus. That form releases phosphorus gradually over several days, so there is consistently an active, available form for the plant to draw on rather than a single spike that locks out before it is used.
The result is steadier phosphorus availability through the flowering window instead of the boom-and-bust pattern that comes from a standard MPK-based PK spike.
Key Benefits
- Polymerised phosphorus releases over days, not hours
- Elevated potassium and phosphorus for flowering
- Resists lockout from calcium and iron in the feed
- More consistent nutrient availability than standard MPK-based boosters
- Suits any base feed
How to Use
- Add at 0.25ml/litre in the first week of flowering
- Raise to 0.5ml/litre in the last weeks of flowering
Technical Specifications
- Active form: polymerised phosphorus (not ionic MPK)
- Dose rate: 0.25ml/L rising to 0.5ml/L
- Stage: flowering
