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Item Number: F1153

Diamond K Solution Grade Gypsum (50 lb)

Organic-Friendly Gypsum Powder for Improved Soil Health

Improve soil structure, enhance water infiltration, and promote plant health with Diamond K gypsum powder—a high-purity, ultra-fine powdered gypsum ideal for home gardens and certified organic farms.

This 50 lb bag contains 97% pure calcium sulfate dihydrate (22% calcium, 18% sulfur). The fine particle size (92% passing through a 325-mesh screen) ensures quick solubility for dry applications, soil drenches, or fertigation systems.

Key Benefits:

  • Loosens Compacted Soils: Breaks up clay and heavy soils for better aeration and root development.
  • Improves Water Management: Increases both drainage and moisture retention in poorly draining soils.
  • Boosts Soil Fertility: Supplies essential nutrients that support plant metabolism and beneficial microbial activity.
  • Certified Organic: OMRI-listed and free of synthetic additives, making it ideal for sustainable gardening.

Application Guidelines:

  • Garden Beds: 5–10 lbs per 100 sq. ft.
  • Container Plants: 1–2 tablespoons dissolved in 5 gallons of water.
  • Field Use: 50–400 lbs per acre (soil); 1–10 lbs per acre (foliar spray).

Diamond K powdered gypsum is a fast-acting, easy-to-apply solution for loosening soil, improving water movement, and increasing nutrient availability. Its high purity and solubility make it a reliable soil amendment for gardeners, landscapers, and organic growers.

Complete your soil health program with our full range of natural and organic fertilizers for sale and soil amendments.

USDA Organic
$17.99
Next-day shipping available

Check Your Zone Compatibility:

Shipping Information

Ships from Northern CA.

Does not qualify for Flat Rate Shipping.

Shipping Weight: 52.0 lb

Dimensions: 21.5"L x 15.5"W x 5.5"H

Features

    Characteristics

    Organic Status: Certified Organic Product
    Animal-Based : No
    Fertilizer Type : Water-Soluble
    Major Nutrients : Calcium
    Major Nutrients : Sulfur
    Nutrient Release Rate : Immediate (0-1 Months)
    Use as Foliar : Yes
    Organic Certifier: OMRI, WSDA, CDFA

    Use Instructions

    Useful Information

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