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Mills C4 500 ml
Mills C4 500 ml is the standard format of the highly concentrated bloom stimulator that serious growers trust for dense, heavy flowers with intense aromatic profiles. C4 delivers a proprietary blend of sugars, vitamins, amino acids and humic acids that maximise carbohydrate transport to flowering sites and drive essential oil biosynthesis. At just 0.5 to 1.5 ml per litre, this format provides months of intensive bloom-phase supply. The proven choice for growers who demand consistent flowering performance at every harvest.
Mills C4 500 ml – Proven Bloom Performance for Consistent Harvests
Bloom-phase performance is where investment in nutrition pays its highest dividends. Mills C4 500 ml is the standard-volume format of the bloom stimulator that forms the core of the Mills flowering programme. Its extreme concentration delivers measurable results at micro-dosages, making it one of the most cost-efficient bloom products available.
Mechanism of Action
During flowering, plants redirect photosynthetic output toward reproductive sites. C4 supports this process by accelerating carbohydrate translocation from source leaves to sink organs (flowers and fruits). Simultaneously, the formulation activates secondary metabolite pathways responsible for terpene, flavonoid and essential oil production. This dual mechanism — energetic and biosynthetic — explains why C4 users report both increased yield weight and enhanced aromatic quality.
Measured Outcomes
- Accelerated flower initiation: earlier flower set formation after photoperiod switch, extending the effective bloom window.
- Denser flower clusters: optimised carbohydrate delivery produces more compact, heavier floral structures.
- Enhanced terpene profile: stimulation of secondary metabolite production intensifies the aromatic and flavour characteristics of the harvest.
- Increased final weight: the combined effect of all active components contributes to measurable yield improvements.
Dosage and Programme Integration
Apply 0.5 ml/L from week 2 of flowering, scaling to 1.5 ml/L in peak bloom weeks. Maintain Mills Basis A&B as continuous base nutrition. Use Mills Start-R during the vegetative phase for root establishment before transitioning to C4. Complete the programme with Mills Ultimate PK for final-stage P&K loading.
Order Mills C4 500 ml from plantandflower.be — fast shipping across Belgium. Proven bloom stimulation for growers who measure success by harvest quality.
How long does a 500 ml bottle of Mills C4 last?
Due to the ultra-low dosage of 0.5-1.5 ml per litre, 500 ml of C4 produces between 330 and 1000 litres of feed solution. For most setups, this covers multiple complete flowering cycles.
Is Mills C4 compatible with all growing substrates?
C4 is fully compatible with soil, coco coir, rockwool, clay pebbles and all hydroponic systems. The formula dissolves completely and does not cause blockages in irrigation equipment.
Can I increase the C4 dosage beyond the recommended maximum?
Do not exceed 1.5 ml per litre. C4 is extremely concentrated and overdosing can cause excessive EC levels and nutrient imbalances. The formula is optimised to deliver maximum efficacy at the recommended low dosages.
Can Mills C4 be combined with bloom stimulators from other brands?
C4 is designed as the primary bloom stimulator within the Mills system. Combining with third-party bloom products is not recommended as it may cause nutrient imbalances. Use C4 alongside Mills Ultimate PK in the final phase for optimal results.
Plant and Flower sells Mills Nutrients high concentrated.
