Biogreen PK 13/14 Flowering Booster for Bigger Buds
Biogreen PK 13/14 Flowering Booster for Bigger Buds
In stock
Couldn't load pickup availability
Share
Order by 3pm Mon–Thu for next-working-day delivery · FREE delivery over £50 · Free Wembley pickup
View full detailsDescription
Concentrated P and K for Explosive Early Flowering
Biogreen PK 13/14 is a bloom additive built from premium raw materials, aimed at the energy transfer behind early flower development. Alongside Potassium (K) and Phosphorus (P) it carries Boron (B), Iron (Fe) and Copper (Cu), with an analysis of PK 5.8-11.8 and N2O5-K2O 13.2-14.2. It is highly concentrated and designed to run alongside your base feed, not replace it. Growers use it to increase flower size, weight and flavour, and it is environmentally safe.
Key Benefits
- Analysis of PK 5.8-11.8 and N2O5-K2O 13.2-14.2 for a genuine bloom-phase lift
- Stimulates energy transfer during flowering, when sites build fastest
- Boron, iron and copper included, so the extra P and K get used rather than locked out
- Highly concentrated - dosing starts at just 0.5ml per litre in soil
- Works in soil and coco with any quality base nutrient
- Improves harvest quality as well as weight
Thin, Airy Flowers and Slow Bulking
Base feeds are balanced for the whole cycle, so from week three demand for phosphorus and potassium climbs past what they supply alone. The result is familiar: sites that set but never fill, airy buds and low yields. A targeted PK additive on a rising then tapering schedule closes that gap.
How to Use
- Soil, weeks 3 and 4: 0.5ml per litre of water
- Soil, weeks 5 and 6: 1ml per litre of water
- Soil, weeks 7, 8 and 9: 0.75ml per litre of water
- Coco and hydroponic media, weeks 3 and 4: 1ml per litre of water
- Coco and hydroponic media, weeks 5 and 6: 1.5ml per litre of water
- Coco and hydroponic media, weeks 7, 8 and 9: 1ml per litre of water
- Mixing: shake well, add to a filled tank after your base feed, stir, then check and correct pH for your medium
- Do not overdose - store cool, dark and out of reach of children
Technical Specifications
- Product type: PK flowering booster (additive)
- Analysis: PK 5.8-11.8, N2O5-K2O 13.2-14.2
- Contains: Potassium (K), Phosphorus (P), Boron (B), Iron (Fe), Copper (Cu)
- Stage: Flowering, from week 3
- Suitable media: Soil, coco coir and other hydroponic media
- Dose, soil: 0.5ml/L wks 3-4, 1ml/L wks 5-6, 0.75ml/L wks 7-9
- Dose, coco and hydro: 1ml/L wks 3-4, 1.5ml/L wks 5-6, 1ml/L wks 7-9
- Use with: Base nutrients

Free next-day delivery on orders over £50 (order by 3pm Mon–Thu). Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.