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Item Number: F1153

Diamond K Solution Grade Gypsum (50 lb)

Organic-Friendly Gypsum Powder for Improved Soil Health

Diamond K Premium 97 Solution Grade Gypsum (50 lb)

Diamond K Gypsum is a high-purity gypsum powder designed to improve soil structure and fertility. With 97% purity, this finely milled powdered gypsum is highly soluble, making it an effective solution for organic growers, home gardeners, and small farmers who want to enhance their soil without synthetic additives.
This Diamond K gypsum is rich in calcium and sulfur, two essential nutrients that support plant growth and soil health. It works by improving soil structure, enhancing aeration, and supporting better water infiltration, helping plants thrive in a variety of soil types.

Key Features:

  • 97% Pure Calcium Sulfate Dihydrate
  • Guaranteed Analysis: 22% Calcium, 18% Sulfur
  • Fine Texture: 92% passing 325 mesh for optimal solubility
  • OMRI-Listed: Approved for organic use

Benefits of Using Diamond K Gypsum Powder:

  • Improves Soil Structure: Helps loosen compacted soils and improves root penetration, making it easier for plants to access nutrients and oxygen.
  • Supports Organic Fertility: Provides calcium and sulfur to support plant health and soil biology, promoting stronger roots and overall plant growth.
  • Enhances Water Management: Improves the soil’s ability to absorb and retain water, which is especially useful in areas with fluctuating rainfall.
  • Promotes Organic Practices: Mined and processed without synthetic chemicals, making it a natural choice for organic farming and gardening.
  • Diamond K Gypsum Powder is easy to apply, dissolving quickly in water for uniform distribution. It can be used in fertigation systems, sprinklers, or directly applied to soil, helping to create a healthier environment for your plants.

How to Use:

  • Soil Application: 50–400 lb/acre (apply more frequently than bulk gypsum)
  • Foliar Use: 1–10 lb/acre
  • General Garden Use: 5–10 lb per 100 sq. ft.
  • Container Plants: 1–2 tablespoons per 5 gallons of water

Each 50 lb bag of Diamond K Gypsum Powder provides ample coverage for small to medium-sized gardens, making it an efficient and reliable choice for organic soil improvement.

Order now and see the difference Diamond K Gypsum can make in your growing season.

Explore our full selection of organic fertilizers and soil amendments to support a thriving, chemical-free garden.

Listed for Use in Organic Agriculture by the Organic Materials Review InstituteApproved for Organic Agriculture by the Washington State Department of AgricultureApproved for Organic Agriculture by the California Department of Food and Agriculturefoliar
Quantity Discounts for Diamond K Solution Grade Gypsum (50 lb)
Buy 10 for $12.34 each
Buy 25 for $11.69 each
$12.99
Discount applied. Offer ends soon.
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: Approved for Use in Certified Organic Agriculture
    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

    Guarantee

    View full details

    Customer Reviews

    Based on 14 reviews
    93%
    (13)
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    K
    Kim
    Very pleased!

    We’ve purchased many amendments from this company and they are all awesome! We are extremely pleased with how happy our plants are now that we are feeding them! We Highly recommend them!

    J
    Jonathan
    It’s gypsum

    Its Nice quality gypsum. Mushrooms seem to be doing very well.

    K
    Keith Palmer
    Extremely Satisfied

    I have been using this product for about 3 years now to clear up muddy pond water and it works wonders making water crystal clean. Have not found anything else I've tried as good and economically priced as this and peaceful valley gets it out right away all the way to Mississippi. Happy with their service

    K
    Keith Palmer
    Extremely Satisfied

    I know this product has alot of uses but I've been using it to clear up the water in my new pond until I get some grass growing around it. Every time we have a big rain it washes this red clay into it and kinda muddied or clouds up thr water to where my fish can't see how to eat. They are sight feeders and this product is harmless to fish and it works great. Better than anything I've tried and have used it a few times. My biggest problem is I'm in Mississippi & it's in California. I can't find it anywhere else and st a price I can afford. I love it. Really does the job

    s
    sequoiah
    plants respond quickly

    Had a need for a quick acting calcium source and I think this is really helping the vegetable plants.