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Flower Hardeners

Flower Hardeners help make your flowers and buds get larger and more dense. These nutrients are very potent, so be sure not to use too much or else you will get nutrient burn. We recommend starting off at 1/4 strength dosage and working your way up slowly.

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  • Grow More Mendocino Avalanche

    Kelp derived Flower Hardener for increased compactness of dense flowers, increased number of flower sites and increased production of essential oil... Learn More
    $25.00

  • Emerald Triangle Gravity Gravitation G10

    G 10 (Gravitation #10) started as an experimental substitute for Gravity but turned into something else. We’ve taken our original proprietary kelp ... Learn More
    $48.61

  • RAW Potassium 0-0-50 - 2 lb

    RAW Potassium contains 50% soluble Potash which is the highest concentration of fully water soluble Potassium available to the home gardener, used ... Learn More
    $49.56

  • RAW Potassium 0-0-50 - 2 oz

    RAW Potassium contains 50% soluble Potash which is the highest concentration of fully water soluble Potassium available to the home gardener, used ... Learn More
    $7.37

  • RAW Phosphorus 9-61-0 - 2 lb

    RAW Phosphorus is a soluble plant supplement that is used for horticultural purposes. RAW Phosphorus contains 61% available Phosphate which is the ... Learn More
    $53.68

  • RAW Phosphorus 9-61-0 - 8 oz

    RAW Phosphorus is a soluble plant supplement that is used for horticultural purposes. RAW Phosphorus contains 61% available Phosphate which is the ... Learn More
    $18.13

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