Greenway Biotech, Inc. Chelated Iron DTPA 11% - Alkaline Soils (pH 4.0-7.5) - 1 lb - 100% Water Soluble Fertilizer

Smart iron nutrition for alkaline soils

Greenway Biotech Chelated Iron DTPA 11% is engineered to perform where traditional iron chelates falter. The DTPA chelate remains stable up to pH 7.5, helping iron stay plant-available even in neutral to mildly alkaline conditions. This practical formula bridges the gap between affordable chelates and premium options, delivering stronger uptake without a steep price tag.

Key benefits in alkaline soils

• Stability up to pH 7.5 so iron remains accessible in challenging soils and hard water
• 11% chelated iron provides robust plant access without excessive dosage
• 3–5x better absorption than iron sulfate in tough alkaline environments
• Turns interveinal chlorosis into green growth on new tissue in 7–10 days
• Soil applications deliver sustained correction for about four to six weeks
• 100% water soluble for foliar spray, soil drench, fertigation, and hydroponics
• Professional-grade, made in the USA, CDFA registered, heavy-metal tested for purity

Practical use cases

• Citrus groves and home orchards facing chlorosis in high pH irrigation
• Lawn turf in alkaline soils where iron lockout is common
• Hydroponic setups and fertigation systems needing reliable iron delivery

How to apply

• Foliar spray: 1–2 teaspoons per gallon for quick leaf greening
• Soil drench: 1–2 tablespoons per gallon for root uptake
• Works in hard water and with standard irrigation systems; mix until fully dissolved

Made in the USA and trusted by citrus growers, nurseries, and commercial operations since 1989, this product is designed for consistent performance. It is a versatile solution for gardeners and professionals who need a dependable iron source that works across citrus, lawn, and hydroponic environments. While results vary with plant type and conditions, many users report visible greening within days and longer-lasting correction with regular applications.