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Soil Amendments

  • Perlite 20 qt Bag

    Perlite is a popular growing media made from expanded volcanic rock. Perlite works as a stand alone growing media for indoor gardening and hydroponics applications. It can also be used as an all natural addition to help loosen heavy soils and improve...

    $9.95
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  • Vermiculite 8 qt Bag

    Vermiculite is made of expanded mica and it is an excellent light-weight soil additive that helps to loosen heavy soils and improve drainage. It also works very well as a stand alone media for starting seeds and storing bulbs.

    $5.95
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  • Perlite 8 qt Bag

    Perlite is a popular growing media made from expanded volcanic rock. Perlite works as a stand alone growing media for indoor gardening and hydroponics applications. It can also be used as an all natural addition to help loosen heavy soils and improve...

    $5.95
    Add to Cart
  • Ancient Forest .5 CF Humus Soil Amendment

    Ancient Forest .5 CF Humus Soil Amendment

    AncientForest® soil amendment Ancient Forest is a natural product consisting of 100% pure forest humus. It is derived from thousands of years of naturally decomposed forest litter that contains a wide spectrum of organic compounds. An incredibly high...

    $14.95
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  • Azomite Granular - 10 lb.

    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 active minerals and trace elements, Azomite requires no mixing, it’s odorless, it won’t burn plants,...

    $21.95
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  • Vermiculite - 20qt

    Often a key ingredient in soilless potting mixes, Vermiculite is prized for its ability to retain moisture. This coarse Vermiculite is especially well-suited to creating soil and soilless mixes tailored to the needs of specific plant types.

    $9.95
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  • Espoma Organics Rock Phosphate 7.25lb Bag

    Rock Phosphate (0-3-0) boosts the soil's phosphorus level while serving as a great source of calcium and essential trace elements. This slow-release fertilizer provides the phosphorus that plants need for healthy root development and impressive flowering...

    $12.95
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  • Espoma Organics Greensand - 7.5 lb

    Greensand turns dense, heavy clay into manageable soil. Mined from deposits in the U.S., Greensand is a naturally-occurring iron-potassium silicate that can hold ten times its weight in moisture. Also contains over 30 trace minerals.

    $13.95
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  • Coast of Maine Lobster Compost Quoddy 1cf

    Coast of Maine Quoddy Blend Lobster Compost is our best-selling soil, made with chitin and calcium-rich lobster shells, compost and peat humus. The result is a dark-brown, complex soil that drains well and is ideal for conditioning beds and borders,...

    $11.95
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  • Epsom Salts 4lb

    Just one (large) spoonful of Epsom Salts can make a big difference for plants! Magnesium sulfate and sulfur are absorbed through leaves and roots to help them produce chlorophyll. Epsom Salts are so reliable, they’re recommended by rose societies...

    $13.95
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  • Insect Frass - 2lb

    Pure Insect Frass, a 100% natural fertilizer, is a great way for gardeners to give their plants the nutrients they crave. Low in sodium and chloride, this water soluble nourishment can be used in a variety of ways, including as a hydroponic additive, a...

    $24.95
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  • Happy Frog Tomato and Veg 18lb

    Gardeners who give their plants Happy Frog Tomato & Vegetable (7-4-5) will be giving them the humic acid and mycorrhizae they need to maximize nutrient uptake and boost yields. This mix also contains a balanced ratio of nitrogen, phosphorus and...

    $39.95
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  • Sunleaves Rocks, 0.5"-1.5", 50L

    Locate a Retailer Sunleaves® Rocks are a reusable growing medium with serious water-holding power for use in any kind of garden. The 1/2-inch to 1.5-inch rocks are made by superheating shale to temperatures up to 2,000 degrees Fahrenheit,...

    $29.95
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  • BAS Pumice 1cf

    Last Longer Than Perlite & Has More Minerals 3/8" x 1/4" Pumice is perfect for potting soil. Pumice is created when super-heated, highly pressurized rock is violently ejected from a volcano. The unusual foamy configuration of pumice happens...

    $18.95
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  • BAS Re-amend Kit for 6 Cubic Feet

    This kit was perfectly designed to re-amend your soil after your first grow cycle and every time there after. Due to weight, this product is always shipped via USPS Re-amend used soil Great for top dressing Balanced with just enough...

    $39.95
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  • BAS Re-amend Kit for 9 Cubic Feet

    This kit was perfectly designed to re-amend your soil after your first grow cycle and every time there after. Due to weight, this product is always shipped via USPS Re-amend used soil Great for top dressing Balanced with just enough...

    $53.95
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  • Black Gold Charcoal 2 qt

    Black Gold Cactus Mix creates a nurturing environment for cacti, succulents and bromeliads that no regular potting soil can match. A porous mixture of pumice, earthworm castings and forest humus specially formulated for succulents provides the soil...

    $7.95 $5.99
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