Grow More® Mendocino Producer's Choice Crystallizer 05-10-40 Soluble — 25 lb

Very High-Potassium Powder Built to Maximize Cell Wall Density in Late Flower

Flower density and resin expression are heavily potassium-dependent processes, and a standard bloom ratio often runs out of potassium exactly when late-stage demand peaks. Grow More Mendocino Producer's Choice Crystallizer 05-10-40 Soluble delivers very high potassium at 40%, moderate phosphate at 10%, and minimal nitrogen at 5%, an NPK profile engineered to maximize cell wall density, resin production, and flower hardness in the critical final weeks of the crop cycle.

As the high-intensity finishing component within the Mendocino Producer's Choice system, the 25 lb bag is introduced during mid-to-late flower when potassium demand peaks, dissolving cleanly for drip, reservoir, and flood-and-drain systems.

Key Features & Benefits

• 40% Potassium for Maximum Flower Density: Very high soluble potash drives carbohydrate accumulation, cell wall thickening, and the structural hardness of dense, high-quality flowers.
• 10% Phosphate for Sustained Bloom Energy: Moderate phosphate continues fueling ATP production and reproductive site metabolism through the finishing stage.
• Low Nitrogen (5%) for Finishing Conditions: Minimal nitrogen reduces vegetative interference during the late stage.
• Late-Stage Timing Precision: Purpose-designed for mid-to-late flower application, supplementing or replacing a traditional bloom formula.
• 100% Soluble, No Residue: Dissolves completely with no insoluble fillers, protecting drip emitters and reservoir systems from clogging.

Who Should Use This

Experienced indoor cultivators and commercial greenhouse operators focused on maximizing flower density, resin expression, and final product quality are the direct fit, used in the final weeks of the flowering cycle to push crop quality over the finish line.

About Grow More Inc.

Grow More Inc., in business since 1918 as National Chemical Company in Hollywood, California and now headquartered in Gardena, California, positions the Crystallizer as the high-potassium late-stage formula in its Mendocino Producer's Choice powdered line.

Frequently Asked Questions

When exactly should I start using the Crystallizer?

It's most effective when introduced during mid-flower, typically after visible flowering is well established, and used through the final weeks before harvest. Starting too early, during early flower, may limit growth needed to build productive flower sites.

Can I replace my bloom formula entirely with the Crystallizer?

Many growers transition from a standard bloom formula to the Crystallizer during mid-to-late flower, using it as a full or partial replacement. The high potassium and reduced nitrogen profile suits the demands of the late flowering stage.

Why is such high potassium beneficial during the finishing stage?

Potassium is central to carbohydrate synthesis, enzyme activation, and water regulation. During late flowering, plants ramp up carbohydrate and terpene accumulation, processes that are heavily potassium-dependent.

Should I continue using calcium-magnesium with the Crystallizer?

Yes, calcium demand remains important through the final stages of flowering to support cell wall integrity and prevent tip disorders. Continue a dedicated calcium-magnesium supplement alongside the Crystallizer through the finishing phase.