Evoponic PK Bulk 18:20 – Flowering Booster
Evoponic PK Bulk 18:20 – Flowering Booster
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
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Description
Build denser, heavier flowers through the whole bloom phase
Evoponic PK Bulk is a concentrated PK 18:20 blend that combines three actions in one bottle: supplementary phosphorus and potassium, bud-maximising minerals and natural flowering hormones from plant extracts. It's aimed at flowering plants that start well but fill out poorly later, working alongside your existing base nutrient rather than replacing it, and it suits both hard and soft water systems.
Key Benefits
- Concentrated PK 18:20 supplies supplementary phosphorus and potassium right through flowering.
- Maximises flower bud development rather than just adding raw PK.
- Natural flowering hormones from plant extracts help trigger and sustain bloom.
- Three products in one, simplifying an otherwise complicated feed schedule.
- Hard and soft water suitable, so it fits most water supplies.
Fixing airy buds and a flowering stage that fades early
Plants that stretch and set flowers but then plateau, filling out loosely rather than packing on density, are usually under-supported through mid-to-late bloom. PK Bulk is dosed to build across the flowering period, not as a single late hit, so bud sites keep developing instead of stalling.
How to Use
- Week 3 of flowering: 0.25ml per litre of nutrient solution.
- Weeks 4-5: 0.5ml per litre.
- Week 6 onward: 0.5-1ml per litre, adjusting to plant response.
- Add PK Bulk to a fresh tank first, then top up with your base flowering nutrients to usual strength.
- Check and adjust pH to 5.8-6.2 after mixing; ease back if you see any nutrient burn.
- Flush with plain, pH-adjusted water in the final week before harvest.
| Week | Per 1 L | Per 10 L |
|---|---|---|
| Flower week 3 | 0.25 ml | 2.5 ml |
| Flower weeks 4 and 5 | 0.5 ml | 5 ml |
| Flower week 6 onward | 0.5–1 ml | 5–10 ml |

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. 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.

