Garden Soil Amendments

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Down To Earth Greensand - 6 lb-NWGSupply.com
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$10.69
$10.50

Down To Earth Greensand - 6 lb

Down To Earth

Greensand has been used as a soil amendment and conditioner since the early 1700s. Naturally occurring in marine sedimentary deposits, our Greensan...

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$10.69
$10.50
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Garden Gypsum, 6 lb-NWGSupply.com
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$8.49
$8.30

Garden Gypsum, 6 lb

Espoma

Espoma’s Garden Gypsum loosens heavy clay soils and helps cure “turf burns” from ice-melters. This soil amendment is pelletized for easy application.

$8.49
$8.30
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Down To Earth Langbeinite (Sul-Po-Mag) - 5 lb-NWGSupply.com
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$10.95
$9.93

Down To Earth Langbeinite (Sul-Po-Mag) - 5 lb

Down To Earth

A unique 3-in-1 combination of Potassium, Magnesium and Sulfur, Langbeinite is a naturally occurring source of these three vital plant nutrients. P...

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$10.95
$9.93
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Roots Organics Big Worm 1 Cu Ft-NWGSupply.com
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$55.95
$31.99

Roots Organics Big Worm 1 Cu Ft

Roots Organics

Roots Organics Premium Worm Castings is a distinctive natural soil amendment. Our worms are carefully tended and fed an unparalleled blend of organ...

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$55.95
$31.99
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Rock Phosphate, 7.25 lb-NWGSupply.com
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$11.99
$11.42

Rock Phosphate, 7.25 lb

Espoma

Rock Phosphate boosts the soil's phosphorus level while serving as a great source of calcium and essential trace elements. This slow-release fertil...

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$11.99
$11.42
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Down To Earth Alfalfa Meal - 5 lb-NWGSupply.com
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$8.19
$8.07

Down To Earth Alfalfa Meal - 5 lb

Down To Earth

An excellent soil conditioner, Alfalfa Meal is a rich source of trace elements and natural growth stimulants. Recommended for all flowering shrubs ...

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$8.19
$8.07
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Azomite Pelletized Trace Minerals, 10 lbs-NWGSupply.com
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$22.95
$19.28
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$13.89
$10.74

Vermiculite 8 Qt

Espoma

• Vermiculite• For improving heavy soils• Helps loosen heavy soils and prevents compaction• Aerates soil and promotes root growth

$13.89
$10.74
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Greensand, 7.5 lb-NWGSupply.com
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$13.89

Greensand, 7.5 lb

Espoma

Greensand turns dense, heavy clay into manageable soil. Mined from deposits in the U.S., Greensand is a naturally-occurring iron-potassium silicate...

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$13.89
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Citrus-tone, 8 lb-NWGSupply.com
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$12.99
$12.47

Citrus-tone, 8 lb

Espoma

Great for citrus, avocados and more, Citrus-tone® is the result of natural organics expertise combined with recommendations from leading research u...

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$12.99
$12.47
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Down To Earth Fish Bone Meal - 6 lb-NWGSupply.com
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$9.95
$8.97

Down To Earth Fish Bone Meal - 6 lb

Down To Earth

Fish Bone Meal is a marine based alternative to traditional steamed Bone Meal and is wonderful for all flowering plants, trees and shrubs. A great ...

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$9.95
$8.97
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Down To Earth Feather Meal - 5 lb-NWGSupply.com
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$11.49
$11.33

Down To Earth Feather Meal - 5 lb

Down To Earth

Feather Meal is a great source of slow release Nitrogen that is perfect for heavy feeders like corn, cole crops and leafy green vegetables. Incorpo...

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$11.49
$11.33
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Down To Earth Acid Mix - 6 lb-NWGSupply.com
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$10.95
$9.56

Down To Earth Acid Mix - 6 lb

Down To Earth

A fertilizer blended specially for acid soil loving plants like rhododendrons, azaleas, hydrangeas, evergreen trees and shrubs, blueberries, raspbe...

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$10.95
$9.56
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Big Worm Worm Castings 1 cf-NWGSupply.com
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$54.95
$36.12

Big Worm Worm Castings 1 cf

Roots Organics

Roots Organics Big Worm pure castings are a distinctive natural potting soil amendment. Their worms are carefully tended and fed an unparalleled bl...

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$54.95
$36.12
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Granular Azomite, 10 lb-NWGSupply.com
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$23.50
$21.60

Granular Azomite, 10 lb

Azomite

Azomite is a natural mineral product that has been mined in Utah for more than 60 years. Containing a broad spectrum of over 70 metabolically activ...

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$23.50
$21.60
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Ancient Forest, 1/2 cu ft-NWGSupply.com
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$16.79
$12.60

Ancient Forest, 1/2 cu ft

General Organics

More than 35,000 species of bacteria and 5,000-plus species of fungi can be found in this soil amendment, composed completely of pure forest humus ...

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$16.79
$12.60
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Roots Organics Earth Worm 1 Cu Ft-NWGSupply.com
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$25.39
$16.35

Roots Organics Earth Worm 1 Cu Ft

Roots Organics

Roots Organics Earth Worm vermicompost contains organic matter to assist in soil aggregation and improve cation exchange capacity of soils. Our ear...

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$25.39
$16.35
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Ancient Forest .5 CF Humus Soil Amendment-NWGSupply.com
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$16.79
$12.60

Ancient Forest .5 CF Humus Soil Amendment

General Organics

AncientForest® soil amendment Ancient Forest is a natural product consisting of 100% pure forest humus. It is derived from thousands of years of na...

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$16.79
$12.60
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FoxFarm Happy Frog Soil Conditioner Tote 27 Cu Ft (3 / pallet)-NWGSupply.com
$610.87

FoxFarm Happy Frog Soil Conditioner Tote 27 Cu Ft (3 / pallet)

Fox Farm

Hand crafted in small batches to ensure superior consistency and quality control. Our soil conditioner is fine-screened, with generous helpings of ...

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$610.87
Happy Frog Fruit and Flower, 18 lb-NWGSupply.com
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$41.10
$36.96

Happy Frog Fruit and Flower, 18 lb

Happy Frog

For gardeners who desire bounteous blossoms and fantastic fruit, the nutrients in Happy Frog Fruit & Flower (5-8-4) is perfect! It’s high in ni...

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$41.10
$36.96
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Marine Cuisine Dry Fertilizer, 20lbs-NWGSupply.com
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$70.95
$60.94

Marine Cuisine Dry Fertilizer, 20lbs

Fox Farm

Seafood for your garden? Yes, with FoxFarm's Marine Cuisine dry fertilizer. With this potent time-release fertilizer for outdoor plants, you'll onl...

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$70.95
$60.94
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Earthshine Soil Booster with Biochar 15 lbs-NWGSupply.com
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$124.99
$93.74

Earthshine Soil Booster with Biochar 15 lbs

GreenGro

Earth Shine All-In-One Natural Soil Booster - A Hydrofarm Exclusive! Earth Shine Soil Additive is a sustainable way to enhance your garden's natura...

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$124.99
$93.74
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Happy Frog Jump Start, 4lbs.-NWGSupply.com
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$13.89
$11.82

Happy Frog Jump Start, 4lbs.

Fox Farm

Happy Frog Jump Start with Mycorrhizae & Humic Acid, 3-4-3 Fertilizer Enriching the soil first is the foundation of organic gardening. Happy F...

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$13.89
$11.82
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Happy Frog High Phosphorus Bat Guano 4 lb-NWGSupply.com
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$16.09
$15.27

Happy Frog High Phosphorus Bat Guano 4 lb

Fox Farm

Bat guano has been known since ancient times to be a highly beneficial organic soil amendment that has a powerful effect on all kinds of plants. Ha...

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$16.09
$15.27
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