Mills C4 is a high-quality flowering additive formulated to meet the increased nutritional demands of plants during mid-to-late bloom. It delivers a potent mix of phosphorus, potassium and trace elements, helping to enhance flower formation, improve flower size and intensify plant vitality. This easy-to-use additive integrates seamlessly with Mills Basis A & B or other base nutrient systems, ensuring your plants receive optimal support when they need it most.

Ideal for soil, coco, or hydroponic setups, Mills C4 is designed for growers who want robust, healthy flowers with maximum weight and quality.

Key Features & Benefits

• Boosts Flower Development: Optimised nutrient profile stimulates flower formation and flowering vigor.
• Supports Denser, Heavier Flowers: Improves nutrient uptake for fuller blooms and increased yield.
• Enhances Plant Vitality: Delivers essential trace elements to strengthen plant structure during flowering.
• Easy Integration: Works alongside Mills Basis A & B or other base nutrients without overcomplicating feed schedules.
• Versatile Medium Compatibility: Suitable for hydroponics, coco coir and soil growing systems.
• Simple to Use: One-part additive for straightforward mixing into nutrient solutions.

How to Use

• Shake Well: Always shake before use.
• Dosage: Add 1 to 3 ml per litre of water, adjusting based on plant response and growth stage.
• Timing: Apply during mid-to-late flowering (typically weeks 3 to 6), or as needed throughout bloom.
• Mixing: Combine with your regular bloom nutrient solution. Adjust pH after mixing.

Frequently Asked Questions (FAQ)

When should I start using Mills C4?
Begin application in the early to mid-flowering phase, around week 3, when plants’ nutrient demand increases sharply.

Can Mills C4 be used in all grow mediums?
Yes, it is compatible with hydroponics, coco coir and soil-based systems.

Is Mills C4 a complete nutrient?
No, it is a bloom additive designed to enhance flowering when used alongside a base nutrient program.

Will it work with hard water?
Yes, Mills C4 is formulated to perform effectively in both soft and hard water conditions.

During flowering, plants require elevated levels of phosphorus, potassium and trace minerals to drive flower development, flower density and overall yield. Mills C4 provides these critical nutrients exactly when they are needed most, helping growers achieve bigger, denser and higher-quality flowers. It’s a reliable, easy-to-use additive that complements your existing nutrient plan, giving your plants the support they need to reach their full flowering potential.