A phosphorus-to-potassium boost tuned for peak flowerBuddhas Tree PK 9-18 is a super-concentrated bloom booster built around a phosphorus-to-potassium ratio of 9 to 18, a balance Buddhas Tree says is not used in any other flowering additive. Run alongside your base nutrients through mid-to-late flower, it drives fruit formation and density while supporting the plant's natural oil, terpene and resin production.Key Benefits 9:18 P-to-K ratio: weighted toward potassium to fuel flowering rather than leafy growth. Explosive fruit formation and density: directs energy into bud and flower development in the back half of bloom. More oils, terpenes and resin: supports aroma, flavour and finish as well as size. Super-concentrated: low dose rates mean a little goes a long way. Highly soluble: mixes cleanly into both hydro and soil feeds. Is your bloom feed short on the P and K flowering demands?As plants swell buds they pull hard on phosphorus and potassium, and a base feed alone often cannot keep up, leaving growth into flower and fruit to stall. PK 9-18's targeted ratio tops up exactly those elements during the weeks that matter most.How to Use Hydro and recirculating: 0.25ml per litre from week 3 of flowering through to flush. Hydro, final 2 weeks: increase to 0.5ml per litre for the last two weeks before flushing only. Soil and coco: 0.3ml per litre every second watering. Soil, final 2 weeks: increase to 0.6ml per litre for the last two weeks before flush. Mixing and pH: add to made-up nutrient solution, stir well and check pH before feeding, then flush before harvest. Technical Specifications Type: PK flowering booster additive P-K ratio: 9-18 by weight Stage: mid to late flowering Suitable media: hydroponics, coco and soil Feed Chart Buddhas Tree PK 9-18 · separate rates for hydro and for soil or coco Medium and stage Per 1 L Per 10 L Hydro and recirculating — week 3 of flower to flush 0.25 ml 2.5 ml Hydro — last two weeks before flush only 0.5 ml 5 ml Soil and coco — every second watering 0.3 ml 3 ml Soil — last two weeks before flush 0.6 ml 6 ml Note — Buddhas Tree state the rate is per 1 litre of water. Super-concentrated, so measure carefully. Add to the made-up nutrient solution, stir well, then flush before harvest. Check pH and EC after mixing.