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Mills Ultimate PK: potent PK booster for explosive flowering. Maximise yields with enhanced phosphorus and potassium. Boost resin, density, and overall plant health. Ideal for hydroponic, coco, and soil grows. Drive peak bloom performance with this high-quality flowering enhancer.
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Mills Ultimate PK, a premium phosphorus and potassium booster designed to drive explosive bloom development and enhance overall plant health. This potent PK fertiliser is meticulously formulated to provide your plants with the essential nutrients they need during the crucial flowering stage, resulting in larger, denser, and more resinous yields. Mills Ultimate PK is perfect for use in hydroponic, coco coir, and soil-based growing systems. Experience the difference with this high-quality flowering enhancer and achieve unparalleled results.
Key Benefits of using Mills Ultimate PK
- Larger Flowers: Ultimate PK is a potent bloom stimulant containing potassium and phosphite, designed to be used in the final weeks of flower development.
- Denser Heavier Fruit Sets: It works quickly to enhance the production of essential oils, acting as a strengthener and enhancer to improve the taste and smell of your plants.
- Contains Phosphites: Ultimate PK is a powerful bloom stimulant with a high level of Phosphite, crucial for the later stages of flowering.
- Bioavailable form of Phosphate: Its highly bioavailable form of phosphate promotes healthier root systems and better nutrient absorption, leading to optimal plant health during the later bloom cycle.
- Maximises Flavour and Aroma: By boosting oil and terpene production, Ultimate PK helps produce larger flowers and fruits, ultimately enhancing the overall quality of your plant’s flavour and aromas.
How to use Mills Ultimate PK
Starting from week 5 of the flowering stage use 2ml per litre of water and increasing to 2.5ml per litre later in flowering. Mills Ultimate PK functions as a ripening stimulant and PK enhancer, resulting in higher oil production and denser, heavier fruit yields. Check the downloads tab for the Mills grow chart for the exact dosage throughout your grow!
NPK Value: 0-7-6
Mills Ultimate PK can be used on all grow mediums including coco, hydroponics and soil.
Available in 250ml, 1 litre and 5 litres.
Frequently Asked Questions
Is Mills Ultimate PK just like all other PK's?
No, Mills Ultimate PK is not like all other PK supplements. It combines phosphorus and potassium with additional micronutrients and bio-stimulants to enhance flower development, density, and overall yield. Its unique formulation supports late-stage plant growth by boosting energy transfer, nutrient transport, and essential oil production. This makes it more advanced than standard PK boosters.Isn't Ultimate PK just like Mills C4?
Mills Ultimate PK and Mills C4 are similar in supporting flowering but serve different purposes:- Mills C4: A bloom booster with a complex blend of carbohydrates, amino acids, and trace minerals. It promotes early and mid-flower development, boosting flower size, terpene production, and overall plant vigour.
- Mills Ultimate PK: A late-stage bloom enhancer focused on increasing flower density, essential oil production, and final yield. It delivers high concentrations of phosphorus and potassium with added micronutrients for maximum flower development.
Using both products together can optimise results throughout the entire flowering phase.
Is Mills Ultimate PK suitable for all types of flowering plants?
Yes, Mills Ultimate PK is designed to benefit a wide range of flowering plants, including fruits, vegetables, and ornamentals. However, always observe your plants and adjust feeding based on their specific needs.Do I need Mills Ultimate PK, what are the benefits?
Ultimate PK is crucial for maximising late-flowering yield and quality. It delivers concentrated phosphorus and potassium to boost flower and fruit weight, density, and essential oil production. It also strengthens plant structure and supports root health for a heavier, higher-quality harvest.SKU: 1297 Free delivery on orders over £60*
- UK Mainland only
Standard Delivery £4.95
- Heavy / Large item surcharge £2 per item
- 1-3 Days**
- UK Mainland only
Express Delivery £8.95*
- Next Working Day**
- UK Mainland only
Scottish Highlands £15.95*
- 2-5 Days***Can not be used with Heavy / Large items
**If ordered on a working day before 2pm cut offPlease See Delivery and Returns page for more details.
