Grow More® Mendocino Producer's Choice All Purpose 20-20-20 — 25 lb

Grow More® Mendocino Producer's Choice All Purpose 20-20-20 (25 lb) — True 1:1:1 Balanced NPK for All Crop Types and Growth Stages

Grow More® Mendocino Producer's Choice All Purpose 20-20-20 delivers a perfectly balanced 1:1:1 macronutrient ratio — 20% nitrogen, 20% phosphate, and 20% potassium — in a 100% water-soluble powder engineered for maximum flexibility across diverse crops, growing environments, and production stages. This equal-ratio formula eliminates the guesswork of stage-specific nutrition, providing a complete macronutrient foundation that supports healthy growth from seedling through early flowering.

The Mendocino Producer's Choice All Purpose 20-20-20 is the go-to formula for growers managing multiple crop varieties simultaneously, simplifying nutrient management without sacrificing performance. As part of the advanced Producer's Choice series, it dissolves completely in water, leaves no residue, and is compatible with virtually every growing system and irrigation method used in commercial and boutique indoor growing environments.

Key Features & Benefits

• Perfect 1:1:1 Macronutrient Balance: Equal 20-20-20 NPK ensures no single macronutrient is deficient or excessive — a reliable foundation for any crop type or growth stage.
• Universal Crop Compatibility: Suitable for fruits, vegetables, flowers, herbs, and specialty crops — simplifies nutrient management in mixed-variety growing environments.
• Full Nitrogen Spectrum: Total nitrogen drives vigorous shoot growth, chlorophyll production, and protein synthesis without overdriving vegetative growth at the expense of reproductive development.
• High Phosphate for Root Strength and Flowering: 20% available phosphate supports root development, ATP energy transfer, and the onset of flowering — productive at every stage of the crop cycle.
• Potassium for Quality and Resilience: 20% soluble potash (K₂O) regulates stomatal function, water-use efficiency, and cell wall integrity — improving plant quality and stress tolerance.

Who Should Use This

Ideal for commercial growers managing multiple crop varieties or mixed growing environments where a single versatile formula is more practical than stage-specific switching. Also well-suited for propagation and early growth stages where balanced nutrition establishes strong, uniform plants before transitioning to phase-specific formulas.

Compatibility

100% water-soluble; compatible with all irrigation systems including drip, flood-and-drain, foliar spray, and hydroponic reservoirs. Supplement with calcium-magnesium and chelated micronutrients for a fully balanced program. Adjust application rate based on crop type, growth stage, and target EC.

Frequently Asked Questions

When is a 20-20-20 formula most useful?

A perfectly balanced 1:1:1 formula is most useful when a single product must serve multiple crops or growth stages. It's also excellent during propagation and early vegetative growth when balanced nutrition establishes a strong root and shoot foundation before transitioning to more targeted formulas.

Can I use All Purpose 20-20-20 through flowering?

Yes, though stage-specific formulas like Bloom 01-10-18 or Flower and Bloom 06-30-30 are optimized for the higher phosphate and potassium demands of flowering crops. The 20-20-20 can be used through early flower or blended with a bloom formula to shift the ratio gradually.

Is this product suitable for foliar feeding?

Yes. The 100% water-soluble formula dissolves cleanly without residue, making it suitable for foliar applications. Apply in dilute solution during the lights-off period or in low-light conditions to avoid leaf burn.

How does this compare to the Mendocino Grow 2-1-6 liquid?

The All Purpose 20-20-20 is a concentrated dry powder with a balanced 1:1:1 ratio, offering flexibility across all stages. The liquid Mendocino Grow 2-1-6 is designed as part of a three-part system with a lower, more precise macronutrient ratio. Both serve different roles in a nutrient program.