Mills Ultimate PK comes in three different sizes to fit your needs: 5L, 1L, and 250ML. Our booster is ideal for the later stages of flowering, as it contains phosphorus that increases oxygen flow to your roots. This soluble form also stimulates root growth while maintaining hard cell structure, essential for producing buds with strong flavors.

Protecting your crops from disease is essential, and the best way to do so is by using a PK booster. With Mills Ultimate PK, you can rest easy knowing that your crops are in good hands. Our product is suitable for use in traditional and organic methods and ensures that your crops will never fall prey to harmful final stage diseases.

To use Ultimate PK, simply add it to your regular feeding schedule during the blooming phase. Use 1 ml per litre of water for the first week, then increase to 2 ml per litre for the following weeks. For the best results, use Ultimate PK alongside our other Mills products.