Grotek

Formulating premium nutrients and supplements for serious growers since 1998.

About Grotek

Grotek, a Greenstar Plant Products brand, has been providing growers with quality science and exceptional results for over 20 years. Our high-performance products have earned the trust of both hobby and commercial growers worldwide. Grotek has been an industry pioneer, combining key organic extracts with mineral fertilizers, giving growers the opportunity to vastly improving harvest quality.
To cultivate mutually beneficial long-term relationships built on trust, quality horticultural products, and world-class service. Our mission is to have our exceptional team empowered to make continuous improvements so that we become the industry leader in our areas of the horticultural industry. We strive to deliver strong financial performance, safe environmental practices, and effective corporate governance.

Greenstar Plant Products

Grotek is a Greenstar brand. Greenstar brands are utilized by commercial operators including growers, landscapers, greenhouses, nurseries, organic farms, as well as independent retailers. They manufacture plant products for both the Retail and Commercial markets.

Our Products

  • Grotek Kick Start, 1 L

    Grotek Kick Start jump starts very young plants, new cuttings or recent transplants. Kick Start is great for cloning as ...

    $20.16

  • Grotek Insta-Green, 1 L

    Insta-Green is a dark greening solution, scientifically formulated to bring plants back to a lush, dark color and vigor. Insta-Green ...

    $8.63

  • Grotek Rype, 10 L

    Crop-producing plants use the last of their energy in preparation to bear fruit. For gardeners, this is the time of ...

    $197.98

  • Grotek Vitamax Pro, 4 L

    Based on a university developed proprietary kelp extraction process, the new Vitamax™ Pro contains unparalleled energy from the ocean, plant ...

    $67.59

  • Grotek Vitamax Plus, 23 L

    The VitamaxTM line is specially formulated to improve plant growth, encourage blooming and assist floral and fruit development. ...

    $256.35

  • Grotek Vitamax Plus, 10 L

    The VitamaxTM line is specially formulated to improve plant growth, encourage blooming and assist floral and fruit development. ...

    $107.02

  • Grotek Vitamax Plus, 4 L

    The VitamaxTM line is specially formulated to improve plant growth, encourage blooming and assist floral and fruit development. ...

    $56.61

  • Grotek Green Line Synergy, 800 grams

    SYNERGYSymbiotic success What is SynergySynergy™ is a water-soluble powder that contains fungi that helps plants achieve explosive root development and overall ...

    $139.80

  • Grotek Green Line Synergy, 400 grams

    SYNERGYSymbiotic success What is SynergySynergy™ is a water-soluble powder that contains fungi that helps plants achieve explosive root development and overall ...

    $94.12

  • Grotek Pro Silicate, 4 L

    Pro-Silicate is a nutritional silicate additive containing potassium and silicon. It helps keep the plants upright, positioning the leaves correctly ...

    $30.12

  • Grotek Pro Silicate, 23 L

    Pro-Silicate is a nutritional silicate additive containing potassium and silicon. It helps keep the plants upright, positioning the leaves correctly ...

    $145.46

  • Grotek Monster Grow Pro, 2.5 kg

    The new Monster GrowTM Pro is a powerful supplement designed to enhance your existing fertilizer program during the ...

    $135.86

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