Your online garden supply store offering organic fertilizers, natural pest control, organic gardening equipment and more.
Planet Natural
Organic Garden Supply
Store Hours
View Cart


Organic Soil Amendments

All soils are different, varying from sand to clay and acid to alkaline. Plants also vary, requiring differing amounts of nutrients, pH, and water retention. We offer a broad range of soil amendments to allow you to remedy specific problems you may have or tailor your soil to specific plants.
Related Articles:
N-P-K and Fertilizers
A Quick Guide to Soil Amendments
Perfect Soil
Fertilizing the Organic Garden
Garden Vegetables and Soil Amendments

Cottonseed Meal (5-2-1)

An excellent source of slow-release nitrogen, phosphorus, potash, and numerous trace elements. Cottonseed Meal (5-2-1)
Price: $9.50

Elemental Sulfur

Lowers pH in alkaline soils! Elemental Sulfur contains 90% sulfur and can be used as a soil amendment around... Elemental Sulfur
Price: $7.50

Shellfish Fertilizer

Shellfish Fertilizer Derived from crab shells, Shellfish Fertilizer is a natural source of calcium (10.50%), nitrogen, phosphorous, potassium and many trace minerals.
Price: $11.50

Glacial Rock Dust

Glacial Rock Dust Contains a broad range of trace minerals...minerals which have been slowly lost through the ages, by erosion, leaching...
Price: $7.95

Greensand (0-0-3)

Mined from deposits of minerals that were originally part of the ocean floor, Greensand contains about 3% total potash, along with... Greensand (0-0-3)
Price: $8.95

Light Warrior Grow Medium

Enhance root growth and encourage greater nutrient uptake by plants with Light Warrior. Contains an organic blend of mycorrhizae... Light Warrior Grow Medium
Price: $18.95

Oyster Shell Lime

Oyster Shell Lime Raises pH in acidic soils! Finely ground oyster shells are a by-product of the seafood industry. Contain...
Price: $7.95

Blood Meal (13-1-0)

Blood Meal (13-1-0) A very strong source of organic nitrogen. Kiln dried Blood Meal has been used for years by organic gardeners...
Price: $12.50

Potting Mix

A unique blend of EKO compost, sphagnum peat moss and perlite formulated for both indoor and outdoor gardens. Potting Mix
Price: $6.95

Bone Meal (2-14-0)

A very strong source of organic phosphorous. Granulated for easy application and quick uptake by plants, Bone Meal... Bone Meal (2-14-0)
Price: $10.95
1 2 3 4 Next Page Show All
Displaying items 1 through 10 of 34 total items



Credit Cards Accepted

Copyright © 2004-2009 Sparky Boy Enterprises. All rights reserved.

Powered by InfoGears