Mills C4 Flowering Stimulator – Bio-Mineral Bloom Booster for Harder Buds & Maximum Resin

Mills C4 is the advanced bio-mineral flowering stimulator designed to act as the ultimate rocket fuel for your plants, ensuring a seamless transition from early flower to explosive bud production while maximizing essential oil content.

Why settle for airy buds when you can have rocks?

Problem: We have all been there: you spend weeks pampering your plants during the vegetative stage, but when flowering hits, the buds turn out fluffy, airy, and lacking that professional density. It feels like a waste of electricity and time when the final jar appeal just isn't there.

Agitation: Nothing is more frustrating than a harvest that looks big on the plant but disappears after drying because the flowers lacked internal structure. Relying solely on basic nutrients often leaves your plants hungry for the specific complex carbohydrates and minerals they need to bulk up, resulting in mediocre yields and a flavor that doesn't quite pop.

Solution: Mills C4 is the bridge that solves this dilemma. Its unique formulation combines the best of both worlds: mineral salts for rapid mass gain and organic bio-stimulants for complex flavor development. It forces the plant to redistribute energy to the flowers, creating harder, heavier, and stickier buds without the hassle of mixing ten different bottles.

Technical Specifications of Mills C4

• Brand: Mills Nutrients (Holland).
• Type: Bio-mineral flowering stimulator.
• NPK Ratio: 0.5 - 3.9 - 2.6.
• Composition: Complex mix of macronutrients, micronutrients, carbohydrates, and amino acids.
• Compatibility: Soil, Coco, and Hydroponic Nutrients systems.
• Application: From the 3rd week of flowering until the flush (approx. week 6-7).

Advantages that make the difference

Unlike standard PK boosters that only dump phosphorus and potassium, Mills C4 offers a sophisticated approach to blooming. Here is why it stands out against basic options:

• Faster Nutrient Uptake: Because it contains mineral elements, the plant absorbs them immediately, fixing deficiencies instantly.
• Organic Quality: The bio-components ensure that while you get the volume, you don't sacrifice the natural terpene profile of the strain.
• Versatility: It works flawlessly in drip irrigation systems without clogging lines, a common issue with thick organic boosters.
• Stress Relief: It helps plants cope with heat or cold stress during the critical blooming phase.

Real benefits you will notice in your harvest

When you add C4 to your feeding schedule, the results are visible within days. You will notice a significant increase in the number of flower sites (internodes stack closer together), and the flowers that form will be much denser. This translates directly to a heavier dry weight.

Furthermore, the production of resin and essential oils skyrockets. This means your final product will not only weigh more but will also have a more potent aroma and flavor. It is the perfect tool for growers who want the yield of commercial Cannabis fertilizers but the connoisseur quality of an organic crop.

How to use Mills C4: Step-by-Step Guide

1. Shake well: Always shake the bottle vigorously before dosing.
2. Timing: Start using it from the 3rd week of flowering (once the first button flowers appear).
3. Dosage:
   • Week 3: 0.5 ml per liter of water.
   • Week 4: 1.0 ml per liter of water.
   • Week 5: 1.5 ml per liter of water.
   • Week 6: 1.0 ml per liter of water.
4. Mixing: Add C4 to your water tank after your base nutrients (Basis A&B) but before adjusting pH.
5. Stop: Discontinue use during the final flushing weeks (usually the last 2 weeks) to ensure a clean ash.

Frequently Asked Questions

Can I use Mills C4 with other nutrient brands?

Yes, C4 is highly compatible. While it works best with the Mills line (Basis A&B), you can use it as a booster alongside other ranges like Advanced Nutrients or Canna, just watch your EC levels.

Is it suitable for hydroponics?

Absolutely. Mills C4 is designed to be clean and soluble, making it perfect for deep water culture (DWC), NFT, and aeroponics without clogging drippers.

What is the difference between C4 and Ultimate PK?

C4 is a bloom stimulator used during early to mid-flowering to set buds and build structure. Ultimate PK is a hardener/ripener used in the final weeks to add maximum weight. They are designed to be used sequentially.

Does it affect the pH of the solution?

It might slightly alter the pH, but Mills products are generally pH stable. Always measure and adjust your pH after adding all nutrients to the water.

Personal Experience of Pevgrow’s CEO (Alan)

I've tested dozens of boosters over the years, and Mills C4 has a permanent spot on my shelf for one reason: balance. Many mineral boosters give you rocks that taste like cardboard, and many organic ones give you great flavor but fluffy buds. C4 hits that sweet spot. I use it heavily in weeks 3 and 4 to really stack the calyxes. My tip? Don't go crazy with the dosage; the recommended chart is spot on. If you push it too hard, you might burn the tips, but if you stick to the schedule, the resin production is insane compared to using just base nutes.