Top 9 Oyster Shell Powder – Industrial & Scientific

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1. Down To Earth All Natural Fertilizers


5 lb, Down to Earth Organic White Oyster Shell OMRI

Down To Earth All Natural Fertilizers #ad - Down to earth oyster shell is a five pound box of all natural fertilizer and is listed by the Organic Materials Review Institute OMRI for use in organic production.

Ancient oyster shells are carefully harvested and then ground into small, medium and coarse particles, providing a sustained release of this valuable nutrient. Calcium is very important to the biological processes of growing plants and aids in improving structure of soils and building optimum tilth. With 35% calcium, flower beds, trees, vegetable gardens, oyster shell is great for use on lawns, outdoor containers, shrubs and row crops/acreage. All-natural and high-quality source of the essential plant nutrient calcium, helping prevent calcium deficiencies that can dimish plant development.
BrandDown To Earth All Natural Fertilizers #ad
ManufacturerDown To Earth All Natural Fertilizers #ad
Height11 Inches
Length4 Inches
Weight5 Pounds
Width8 Inches
Part Number07884



Gardening, and Soil| Made in USA 3 lb, ESVK Natural Ground Powder Oyster Shell, 3 Pound Pack of 1 | Calcium Supplement for Plants

ESVK #ad - Great calcium supplement for Plants, Gardening, Lawn-care, and Soil. Natural powder/ground Oyster Shells - 3 LB Pack of 1. Made in USA. Easy to use & Store Packaging. Made up of 100% Oyster Shells.
BrandESVK #ad
ManufacturerWKDVA #ad
Weight3 Pounds
Part NumberP

3. Four Winds Trading


Natural Crushed Oyster Shell with Calcium 4 lb

Four Winds Trading #ad - Wonderful amenity to any garden. Slowly releases calcium, a much needed nutrient. All natural crushed oyster shell. Helps neutralize soil acidity.
BrandFour Winds Trading #ad
ManufacturerFour Winds Trading #ad
Height2 Inches
Length7 Inches
Weight4 Pounds
Width7 Inches

4. Coastal


Oyster Shell Crushed 15lb. Bag by Coastal

Coastal #ad - Oyster shell provides a long-lasting, improve fertilizer uptake, steady release of nutrients to help regulate pH levels, promote healthy cellular structure and enhance soil tilth. Oyster shell is also helpful in creating more active habitats for soil microbes in compost piles and worm bins. Contains pullet-sized crushed oyster shell and coral calcium. Pullet size crushed oyster shell 5 lb provides a good source of calcium that builds strong eggshells for your birds. Promotes strong eggshells. Use as a calcium source to promote strong eggshells. Heat-treated for purity.
BrandCoastal #ad
ManufacturerCoastal #ad
Weight5 Pounds
Part Number6634772

5. Old Cobblers Farm


Oyster Shell Crushed 5lb. Bag by Old Cobblers Farm

Old Cobblers Farm #ad - Oyster shell provides a long-lasting, improve fertilizer uptake, steady release of nutrients to help regulate pH levels, promote healthy cellular structure and enhance soil tilth.
BrandOld Cobblers Farm #ad
Weight5 Pounds

6. Soil Sunrise


Oyster Flour Soil Conditioner 1 Quart, Gardening Soil Amendment for Plants

Soil Sunrise #ad - Size: 1 quart. Ingredients: 100% oyster flour for horticultural use. Benefits: provides high calcium carbonate and many micronutrients. Pamper your plants: all-natural; no additives or chemicals perfect for indoor / outdoor container gardening. Uses: soil conditioner / additive, chicken feed, nutrient supplement, and much more.
BrandSoil Sunrise #ad
ManufacturerSoil Sunrise #ad
Height3 Inches
Length6 Inches
Weight0.3 Pounds
Width9 Inches
Part NumberSSKIT173

7. Bearded Hen


Egg Laying Hen Supplement, Chicken 3 Pounds, Duck, Bearded Hen, Wild Turkey, Limestone, Granite, All Natural Crushed Oyster Shell, Game Bird, Coral Calcium, Triple Calcium w/Gizzard Grit

Bearded Hen #ad - All natural, no antibiotics, non-medicated, no animal proteins or animal fats. Developed for adult fowl & Poultry Not designed for small birds, parakeets, quail, etc. Crushed oyster shells, Coral Calcium, granular Limestone, & Grit Crushed Granite. Promotes healthy flocks, Digestive Health, Egg Shell Improvement, Strong Bones. Made in the usa! most complete Calcium & Grit Supplement Available.
BrandBearded Hen #ad
ManufacturerM.C.D. #ad
Height3.07 Inches
Length6.1 Inches
Weight3.09 Pounds
Width3.07 Inches

8. Neptune's Harvest


Neptune's Harvest Crab & Lobster Shell, 4 lb

Neptune's Harvest #ad - Neptune's harvest organic crab & lobster shell is an excellent dry organic source of NPK 5-3-0, calcium 17 % and magnesium 1%. Crab shell can be applied in combination with Neptune's Harvest Kelp Meal to increase organic matter and retain moisture in the soil. It will also help with nematode and fungus problems. Crab & lobster Shell will keep your lawn healthy and green.
BrandNeptune's Harvest #ad
ManufacturerNeptunes Harvest #ad
Height4 Inches
Length7 Inches
Weight4 Pounds
Width6 Inches
Part NumberCS 604

9. Garden Naturals


Garden Naturals, 5 Pounds All Natural Crushed Oyster Shells for Poultry Birds and Gardens

Garden Naturals #ad - Pure and Scent Free. Comes in heat sealed heavy duty bag. Promotes strong Egg Shell for Layers. Works great in poultry feed. Full of calcium.
BrandGarden Naturals #ad
ManufacturerGarden Naturals #ad
Weight5 Pounds