Grow More® Mendocino Producer's Choice Bloom 01-10-18 — 25 lb

Low-Nitrogen High P+K Powder Built to Shift Growth Into Bloom Mode

Vegetative-stage nitrogen levels can linger past the point where a plant should be redirecting energy into flower production. Grow More Mendocino Producer's Choice Bloom 01-10-18 is a precision flowering fertilizer with just 1% nitrogen, 10% phosphate, and 18% potassium, the classic bloom-stage ratio that reduces the nitrogen signal driving leafy growth while maximizing the P and K environment plants need for dense, productive flowers.

Part of the Mendocino Producer's Choice advanced powder series, the 25 lb bag dissolves fully with no residue and can serve as a core bloom nutrient or be blended with other Producer's Choice formulas to fine-tune ratios through the flowering cycle.

Key Features & Benefits

• Low Nitrogen (1%) for Bloom Transition: Reduces vegetative drive and signals the plant to direct energy into reproductive development.
• 10% Phosphate for Flower Site Development: Fuels ATP energy production, root function, and the development of reproductive sites.
• 18% Potassium for Quality and Density: Supports cell wall strength, enzyme activation, water regulation, and starch accumulation.
• Clean Bloom-Stage Macronutrient Profile: Precisely calibrated for the flowering stage of the crop cycle.
• 100% Water-Soluble: Dissolves completely with no insoluble residue, compatible with drip, flood-and-drain, and recirculating hydroponic systems.

Who Should Use This

Indoor cultivators, greenhouse growers, and hydroponic operators managing flowering crops who need a clean, low-nitrogen bloom formula are the direct fit, whether as a primary bloom nutrient or a component tracked precisely within a multi-part program.

About Grow More Inc.

Grow More Inc., founded in 1918 as National Chemical Company in Hollywood, California and now based in Gardena, California, positions Bloom 01-10-18 as the entry-point flowering formula in its Mendocino Producer's Choice powdered line.

Frequently Asked Questions

When should I switch from a vegetative formula to Bloom 01-10-18?

Transition at the onset of the reproductive stage, typically as flower sites begin to develop. The reduction in nitrogen combined with increased P and K supports the plant's shift from vegetative extension to flower production.

Can I blend Bloom 01-10-18 with a vegetative formula during the transition?

Yes, blending it with a vegetative or balanced formula during the transitional phase allows a gradual NPK shift rather than an abrupt change, reducing plant stress. This staged blending approach also gives growers more control over exactly when the plant shifts into full flowering mode.

Is this formula suitable for recirculating hydroponic systems?

Yes, as a 100% water-soluble powder it's safe for recirculating systems. Monitor reservoir EC and pH regularly and refresh the reservoir per your system protocol to prevent salt accumulation.

Does this formula contain calcium or magnesium?

It's a macronutrient formula focused on P and K delivery, so supplement with a dedicated calcium-magnesium product throughout the bloom stage, since calcium demand remains high during flowering. Running it without that supplement risks calcium-deficiency symptoms even when the phosphate and potassium numbers look strong.