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Rocks & Perlite


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  • Black Gold Pumice, 4 qt

    $10.20
    Black Gold Pumice can be used as growing media or added to soil mixes to increase bulk density. This porous stone ensures nutrient retention while providing just the right amount of air and water to roots for healthy cacti,...Learn More

  • Gold Label Hydrocorn, 36 L

    $44.85
    The unique size and structure of Gold Label Hydrocorn make it a growing medium that is the substrate of choice for hydroponic professionals. The clay pebbles are baked in an open furnace using high-grade clean fuels to...Learn More

  • Growstone Gnat Nix, 2 L

    $8.55
    Scientifically proven Growstone® Gnat Nix provides an effective, long-lasting physical barrier against fungus gnats. Used as a top dressing, it interrupts gnats' lifecycles by preventing adult emergence from hatching...Learn More

  • Growstone Gnat Nix, 9 L

    $15.70
    Scientifically proven Growstone® Gnat Nix provides an effective, long-lasting physical barrier against fungus gnats. Used as a top dressing, it interrupts gnats' lifecycles by preventing adult emergence from hatching...Learn More

  • Growstone GS-1 Hydro Stones, 9 L

    $14.60
    Growstone® GS-1 Hydro Stones are a breakthrough, high-performance hydroponic growing media specifically engineered for a balanced air-to-water ratio. GS-1 Hydro Stones deliver 67 percent more water retention and 12...Learn More

  • Growstone GS-2 Mix This! Soil Aerator, 9 L

    $14.05
    Growstone® GS-2 Mix This! Soil Aerator is the ideal aeration component of soil mixes. Its highly porous aggregates act as air pockets, significantly enhancing aeration and drainage of any sphagnum-peat-, coco-coir- or...Learn More

  • Mica-Grow Vermiculite Soil Additive, 20 qt

    $15.15
    Often a key ingredient in soilless potting mixes, Mica-Grow Vermiculite Soil Additive is prized for its ability to retain moisture. This coarse Vermiculite is especially well-suited to creating soil and soilless mixes...Learn More

  • Mica-Grow Vermiculite Soil Additive, 8 qt

    $8.82
    Often a key ingredient in soilless potting mixes, Mica-Grow Vermiculite Soil Additive is prized for its ability to retain moisture. This coarse Vermiculite is especially well-suited to creating soil and soilless mixes...Learn More

  • Sunleaves Bonsai Rocks, 4 lb

    $7.45
    Mixing Sunleaves Bonsai Rocks with other natural growing media significantly reduces compaction, increases air circulation and regulates moisture to maintain ideal root-zone conditions for bonsai. These microporous, 1/8-inch...Learn More

  • Sunleaves Rocks, 0.25" - 0.5", 13 lb

    $11.30
    Sunleaves Rocks are a reusable growing medium with serious water-holding power for use in any kind of garden. The 1/4-inch to 1/2-inch rocks are made by superheating shale to temperatures up to 2,000 degrees Fahrenheit,...Learn More

  • Sunleaves Rocks, 0.5" - 1.5", 13 lb

    $11.30
    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,...Learn More