Grow More® Mendocino 0-37-37 Fertilizer — 25 lb

Ultra-High Phosphorus and Potassium Supplement for Maximum Yield Potential — Grow More 0-37-37

Grow More® Mendocino 0-37-37 is an extreme-concentration, nitrogen-free phosphorus and potassium water-soluble fertilizer supplement designed to provide the intense PK levels that high-yield crop programs demand. Used correctly as a supplement alongside standard soil-applied fertilizers and well-managed cultivation practices, Grow More 0-37-37 can provide an attractive economic return by driving yields above what base fertilization programs alone can achieve.

Key Features & Benefits

• 0-37-37 NPK Ratio: Extreme concentrations of both phosphorus and potassium with zero nitrogen — a formula specifically built for scenarios where PK supplementation must be maximized without adding additional nitrogen to the program.
• Nitrogen-Free: Allows growers to push phosphorus and potassium levels independently during the flowering and fruiting phases without disrupting carefully managed nitrogen reduction programs.
• 100% Water Soluble: Fully dissolves for use in drip irrigation, overhead fertigation, and hand-watering applications without residue, settling, or clogging.
• Supplement to Soil-Applied Fertilizers: Designed to be used in addition to a complete base fertilizer program — providing supplemental PK that soil-applied granular fertilizers cannot deliver with the same precision and timing control.
• High Solubility and Purity: Formulated with high-purity, highly soluble raw materials for consistent, predictable performance across applications and growing environments.
• 25 lb Bag: Commercial-volume packaging for growers who require consistent, high-volume PK supplementation across production cycles.

Who Should Use This

Grow More 0-37-37 is designed for experienced commercial growers and serious producers who understand the nutritional demands of their specific high-yield crops and want precise, independent control over their phosphorus and potassium supplementation during the critical flowering and fruiting phases of production.

Compatibility

Use 0-37-37 as a supplement to an existing complete fertilizer program — not as a standalone product. Compatible with all common water-soluble fertilizer programs and drip irrigation systems. Dissolve in water before mixing with other nutrients, and always pH-adjust the final solution to the appropriate range for your crop and growing system.

Frequently Asked Questions

How is 0-37-37 used in a production fertilizer program?

0-37-37 is added to an existing base fertilizer program as a supplemental PK boost during the flowering and fruiting stages when phosphorus and potassium demand is highest. It is not a complete fertilizer and should not be used as the sole nutritional input. Calculate the additional phosphorus and potassium it contributes against your existing program to avoid over-supplementation.

What crops benefit most from high PK supplementation at bloom?

Fruiting vegetables, flowering crops, and any high-yield production system where the number, size, and density of blooms and fruit directly determine economic return benefit most from elevated PK during the reproductive phase. The 37% phosphorus and 37% potassium combination addresses both the energy transfer demands of flowering (phosphorus) and the structural and quality needs of developing fruit (potassium).

Can 0-37-37 be mixed with calcium or magnesium supplements?

High phosphorus fertilizers can react with calcium to form insoluble calcium phosphate precipitates if combined incorrectly. Always dissolve each fertilizer separately in water before combining, add calcium-containing products to the final diluted solution rather than the concentrate, and monitor for any cloudiness or precipitation that would indicate incompatibility.

What is the recommended application rate for 0-37-37?

Application rates vary widely based on crop type, growth stage, existing nutrient program, and water quality. Always refer to the Grow More application guide and start at the lower end of the recommended range, monitoring plant response and adjusting based on visual health indicators and EC targets.

Is 0-37-37 compatible with organic growing programs?

0-37-37 is a synthetic water-soluble fertilizer not approved for use in certified organic programs. For organic operations requiring PK supplementation, look for OMRI-listed phosphate and potassium inputs approved under your specific certification standard.