Description
Enhance your flowering stage with Mills Ultimate PK, a premium bloom additive designed to maximise bud size, density and overall yield. Formulated for serious growers, this high-phosphorus and potassium solution provides essential nutrients at the critical flowering phase, helping plants reach their full flowering potential.
Read the full product overview here...
Mills Ultimate PK is a concentrated phosphorus (P) and potassium (K) additive, designed to support the final stages of flowering. By delivering high levels of these key nutrients, it encourages larger, denser flowers, improved fruit set and stronger overall plant structure.
Compatible with Mills Basis A & B or other base nutrient programs, this bloom booster is easy to integrate into your feeding schedule and is suitable for soil, coco and hydroponic systems. Mills Ultimate PK is ideal for growers who want to push flowering performance and achieve higher quality yields.
Key Features & Benefits
- High Phosphorus & Potassium: Supports vigorous flowering and bud development.
- Maximises Flower Size & Density: Encourages fuller, heavier blooms.
- Enhances Nutrient Uptake: Improves plant efficiency in absorbing base nutrients.
- Easy to Use: One-part formula, simple to mix into nutrient solutions.
- Versatile Application: Works with hydroponics, coco coir and soil setups.
- Compatible with Base Nutrients: Complements Mills Basis A & B for complete feeding.
- Optimised for Late Flowering: Perfect for final weeks before harvest to boost yield and quality.
How to Use
- Shake well before use.
- Dosage: Add 1–3 ml per litre of water, adjusting according to plant size and growth stage.
- Timing: Apply during mid-to-late flowering, typically from week 4 of bloom until harvest.
- Mixing: Combine with your base nutrient solution, ensuring even distribution and correct pH.
Frequently Asked Questions (FAQ)
When should I start using Mills Ultimate PK?
Begin during mid-to-late flowering, around week 4, when phosphorus and potassium demands increase for optimal bud development.
Can I use it with all grow mediums?
Yes, Mills Ultimate PK is compatible with soil, coco coir and hydroponic systems.
Is it a complete nutrient?
No, it is a bloom booster additive and should be used alongside your base nutrient program.
Will it work in hard water?
Yes, formulated to perform reliably in both soft and hard water conditions.
During the late flowering phase, plants require increased phosphorus and potassium to maximise bud formation, density and final yield. Mills Ultimate PK supplies these nutrients in a highly available form, ensuring flowers develop to their fullest potential. By supporting strong, heavy and high-quality blooms, it’s an essential additive for growers looking to enhance flowering performance and achieve exceptional harvests.