In StockMills Ultimate PK
£19.76£21.95Save £2.19
In stock
Available from our Bristol shop
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Description
Mills Ultimate PK is designed to push density and bulk to their limits.
Containing Phosphite, an extremely bioavailable form of Phosphate, Ultimate PK not only hardens fruits and flowers, but also promotes a healthy root system during the late flowering stages of a plant's life.
- Hardens & bulks out flowers/fruits.
- Acts as a ripening agent.
- Promotes the best aroma and flavour.
With an N-P-K of 0-7-6, Mills Ultimate PK is designed to be used in the final 2 - 4 weeks of flowering and is available in 250ml, 1l and 5l sizes.
***Do not use alongside any other PK additives***
Key facts
| Type | Late-flowering PK booster with phosphite |
|---|---|
| NPK | 0-7-6 |
| When | The final 2 to 4 weeks of flowering |
| Does | Hardens and bulks out flowers and fruit, acts as a ripening agent, supports the roots late in flowering |
| Brand | Mills Nutrients |
| Sizes | 250 ml, 1 litre and 5 litres |
| Category | PK Boosters |
How to use
Add Ultimate PK to the feed for the final 2 to 4 weeks of flowering, at the rate on the label. It is made to go with Mills Basis A & B and the rest of the Mills range.
Do not use it alongside any other PK additive: Mills are clear on this.
Check the EC of the finished feed with a pH and EC meter. More boosters are in PK boosters.
Questions
When do I use Mills Ultimate PK?
In the final 2 to 4 weeks of flowering.
Can I use it with another PK booster?
No. Mills say not to use it alongside any other PK additive.
What is phosphite?
A form of phosphorus that plants take up very readily. Mills use it so the booster hardens the flowers and fruit and also supports the roots late in flowering.
Growers’ guides
- PK Boosters and Bloom Boosters: PK 13/14 Doses and When to AddWhat a PK booster does, what PK 13/14 and 9/18 mean, when to add Canna PK 13/14 or Canna Boost, and the boosters and stimulants we sell compared.
- pH and EC: Meters, Test Kits and pH Up/DownHow to test pH with a meter or a pH test kit, measure EC, read the makers' targets, use pH Up and pH Down, and calibrate and care for a meter.
