• Oyster Shell Flour (5 lb Box) Down to Earth
  • Oyster Shell Flour (5 lb Box) Down to Earth
  • Oyster Shell Flour (5 lb Box) Down to Earth
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Item Number: F018

Oyster Shell Flour (5 lb Box)

Improves Soil Tilth and Builds Healthy Root Systems

Down To Earth’s Oyster Shell is an all-natural and high-quality source of the essential plant nutrient calcium. Ancient oyster shells are carefully harvested and then ground into small, medium and coarse particles. These irregular shapes provide a sustained release of this valuable nutrient. DTE Oyster Shell also aids in improving structure of soils and building optimum tilth.

  • Natural, organic source of calcium is used to correct Ca deficiencies and raise pH in acidic soils.
  • Contains 35% calcium
  • Variable particle size provides both immediate and long-term fertilization.
  • Use at 2.5-5 lbs per 100 square feet or 2.5-5 lbs per 100 square feet, depending on soil analysis and crop. Repeated applications may be needed to fully adjust pH and Ca levels. Spread 1 lb per 1″ of trunk diameter around the base outwards to the drip line, mix into soil surface and water in well.
Listed for Use in Organic Agriculture by the Organic Materials Review InstituteApproved for Organic Agriculture by the California Department of Food and Agriculture
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Quantity Discounts for Oyster Shell Flour (5 lb Box)
Buy 3 for $10.44 each
Buy 5 for $9.89 each
$10.99
here $13.99
Discount applied. Offer ends soon.

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Shipping Information

Ships from Northern CA.

Shipping Weight: 6.0 lb

Dimensions: 11.0"L x 8.25"W x 3.0"H

Features

    Characteristics

    Organic Status: Approved for Use in Certified Organic Agriculture
    Animal-Based : Yes
    Fertilizer Type : Powdered/Granulated/Meal
    Major Nutrients : Calcium
    Major Nutrients : Trace Minerals
    Nutrient Release Rate : Long-term (4+ Months)
    pH Adjusting : Corrects Low pH
    Use as Foliar : No
    Organic Certifier: OMRI, CDFA

    Use Instructions

    Useful Information

    PDF

    SDS
    PDF

    Product Label

    Guarantee

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    Customer Reviews

    Based on 2 reviews
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    J
    Jeanie Beanie
    Better than bone meal for me

    The last 3 or 4 years the red oaks in our area of MaineI have produced an over abundance of acorns. Lots of acorns means lots of rodents and squirrels, which means distruction in the garden and many oak seedlings buried by the critters to dig out of the garden beds in thre spring. I learned bone meal can be attractant for even more rodents. Uhg! I was so glad to find Oyster Shell Flour, a good alternative for bone meal, at GrowOrganic.com. It isn't easy to find. I feel it has been the great bone meal alternative I was hoping it to be, but I can't judge if it will have any affect on rodent acarries all the organic gardening products I need, especially the hard to find items. Thank you Grow Organic.

    P
    Pett
    Cost the Cost

    I like this ground up shell, easy to use and effective. I had a pH of 5.2 and I applied a bit more that recommended and it raised the pH by the end of the season.

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