Nutrients & Additives

1675 products

  • Gaia Green Power Bloom 500g

    Gaia Green Power Bloom 500g

    Power Bloom is a high phosphate fertilizer specifically formulated to support prolific flowering and fruiting. As a result, Power Bloom is our best fertilizer for root development and for all flowering and fruiting plants.Benefits: This complex, multi-ingredient blend contains high phosphorus and potassium levels suitable for a wide range of flowering and fruiting crops. Embodies the Gaia Green ethos of improving soil quality to support resilient plant growth and abundant, long-lasting blooms. Easy-to-use and long-lasting, this formulation combines ingredients with variable nutrient release rates to support high-yields. Available in granulated and non-granulated. Note: Granulated version is not approved for use in organic agriculture.

    $11.99$10.99

  • Roots Organics HPK 0-4-3, 1 qt

    Roots Organics Roots Organics HPK 0-4-3, 1 qt

    Roots Organics HPK liquid bloom booster features a combination of seabird guano, an unparalleled source of available natural phosphorus, phosphate rock, and langbeinite, a natural source of potassium that is carefully mined from ancient sea beds in the deserts of the American Southwest. Aurora Innovations has taken generations of gardening experience and distilled it into a distinctive, easy-to-use formula for the home and professional gardener. Roots Organics HPK is minimally processed to preserve all the benefits and amazing synergistic qualities found in our exceptional ingredients.

    $24.93

  • GH Flora Bloom Quart (12/Cs)

    General Hydroponics GH Flora Bloom Quart (12/Cs)

    Stimulates flower and fruit development. Enhances flavor, aroma, and essential oils. Provides high phosphorous, potassium, magnesium and sulfur.

    $15.99

  • Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 100 g Singles (60 per case)

    Xtreme Gardening / RTI Xtreme Mykos Pure Mycorrhizal Inoculum, Granular, 100 g Singles (60 per case)

    Mykos - Pure, Fresh & Alive: Being beneficial organisms, mycorrhizae live on the roots of plants and form a symbiotic relationship. They then extend microscopic straw-like filaments called "hyphae" into the soil with which they extract, transport, and dramatically increase a host plant's supply of nutrients and moisture. Pockets of nutrients and water in the soil which were once unreachable by standard root systems are now made accessible through the "super-mining" effects which mycorrhizae gift to your plants. Mycorrhizae also release a glue-like substance into the soil (Glomalin) which improves water storage and capacity, leading to lower watering costs. Although ideal for use on all plants, mycorrhizae are especially beneficial toward: tomatoes, herbs (thyme, basil, sage, etc.), pumpkins, beans, bulbs (all), squash, cantaloupe, carrot, celery, corn, cucumber, garlic, leek, lettuce, melon, onion, peas, potato, strawberry, and grape varietals. Mycorrhizal fungi are ancient in origin and the benefits are boundless. Pound for pound, mycorrhizae provide plants with the greatest possible benefit for the smallest amount of input. With a single inoculation, mycorrhizae are capable of transforming the ordinary garden into something Xtreme! Granular 100g Singles (case of 60). 2-year guaranteed shelf life.

    $3.99$3.49

  • GH CALiMAGic Quart (12/Cs)

    General Hydroponics GH CALiMAGic Quart (12/Cs)

    CALiMAGic™ is a concentrated blend of readily available calcium and magnesium. It is formulated to assist fast growing plants by preventing secondary nutrient deficiencies. CALiMAGic™ helps optimize plant nutrition and enhances plant growth and development while preventing blossom end rot and tip burn in many crops, such as tomatoes and lettuce as well as other calcium intensive plants.

    $21.76$20.67

  • Gaia Green Worm Castings, 2L U.S. (NA02)

    Gaia Green Gaia Green Worm Castings, 2L U.S. (NA02)

    GAIA GREEN Worm Castings are the unprocessed manure of earthworms. This all-purpose fertilizer is high in organic matter, and adds essential nutrients to the soil to encourage strong plant growth. Apply as a top dressing, side dressing, or work into soil for outstanding growth. Recommended for household plants, urban gardens, lawns, golf courses, nurseries, and greenhouses.

    $15.99

  • GH FloraNova Grow Quart (12/Cs)

    General Hydroponics GH FloraNova Grow Quart (12/Cs)

    FloraNova® represents a breakthrough in fertilizer technology. FloraNova® gives users both the strength of a dry concentrate and the ease of a liquid. This unique formulation of highly purified minerals and natural additives combines the benefits of both organic and soilless gardening methods. Optimum nutrient absorption is aided by natural humic extracts for increased quality and superb yields. FloraNova® is a one-part formula that is pH stabilized and outstanding for all plant types. Works as a specialized nutrient for rapidly growing plants during the structural and foliar growth phase.

    $33.08$31.43

  • Roots Organics CalMag, 1 qt

    Roots Organics Roots Organics CalMag, 1 qt

    Roots Organics CalMag is a pure and all natural blend of calcium, magnesium and sulfur to support plants during fast growth. By creating a product free of added nitrogen, phosphate, and potassium, Roots Organics give you control to supplement as needed without affecting primary fertility input ratios. Use in combination with high quality base fertilizers like Roots Organics Buddha Grow and Buddha Bloom. Free of added nitrogen, phosphate, and potassium Ideal for fast-growing and heavy feeding plants Derived from Kieserite, Gypsum

    $28.90

  • GH Flora Micro Quart (12/Cs)

    General Hydroponics GH Flora Micro Quart (12/Cs)

    The foundation of the building-block system. Provides nitrogen, potassium, calcium and trace elements. Combine with FloraGro® and FloraBloom®.

    $19.21$18.25

  • Roots Organics Terp Tea Bloom Booster, 3 lb

    Roots Organics Roots Organics Terp Tea Bloom Booster, 3 lb

    Roots Organics Terp Tea Bloom BoosterNPK  /  0.5 - 6 - 18DERIVED FROMSulfate of Potash, Phosphate Rock, Crab Meal, Fishbone Meal, Alfalfa Meal, Kelp Extract (Ascophyllum nodosum ), and Langbeinite.Roots Organics Terp Tea Bloom Booster adds a strategic fertility input for your garden. This proprietary ratio of potent ingredients supplements flowering plants in the later stages of development, enhancing blossom vigor. The result of extensive research and development, Roots Organics Terp Tea Bloom Booster helps bring the ratio of potassium and other primary macronutrients into your targeted range to provide Soluble Potash supplementation that boosts plant growth and yields. Beneficial bacteria are added to enhance availability of plant nutrients and to help plants to resist stress. Terp Tea Bloom Booster is the ultimate support for late-stage natural blossom growth.

    $39.99$37.99

  • GH FloraNova Bloom Quart (12/Cs)

    General Hydroponics GH FloraNova Bloom Quart (12/Cs)

    FloraNova® represents a breakthrough in fertilizer technology, as it gives users both the strength of a dry concentrate and the ease of a liquid. This unique formulation of highly purified minerals and natural additives combines the benefits of both organic and soilless gardening methods. Optimum nutrient absorption is aided by natural humic extracts for increased quality and superb yields. FloraNova® is a one-part formula that is pH stabilized and outstanding for all plant types. FloraNova® Bloom Promotes explosive flowering and fruiting. FloraNova Bloom induces phenomenal aroma, taste and colors while delivering extraordinary yields.

    $33.08$32.99

  • GH Flora Gro Quart (12/Cs)

    General Hydroponics GH Flora Gro Quart (12/Cs)

    Stimulates structural and vegetative growth. Builds strong roots. Provides nitrogen, phosphorous, potassium and secondary minerals.

    $15.00$14.25

Nutrients & Additives

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