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19 Products
Grotek’s nutrients, 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.
£19.55 / £23.18 SALE
Grotek's Core is the heart of the Greenline Organics range and offers the essential NPK ratio that provides the basis for our mu...More
£22.75 / £25.75 SALE
Calcium is vital to the success of the plant, and Grotek Vital provides growers with an opportunity to obtain the right level of calcium ...More
£20.95
Growing indoors organically can pose problems not only because of the lack of biology, but also because of the lack of micronutrients. Mi...More
£21.25 / £24.10 SALE
Accelerating the development of the root is key to the success of the crop. Root Force drives the secondary root structures of the root. ...More
£19.10 / £21.75 SALE
Kelp has long been considered an incredible organic supplement. Growth Max is a highly concentrated cold processed kelp rich in organic c...More
£24.95
Plants that produce crops use their last energy in preparation to produce fruit. For gardeners, this is the time to judge their hard work...More
£15.85 / £17.95 SALE
Biofuse™ is a water-soluble inoculant containing microorganisms that come to life when applied to soil. These beneficial microbes c...More
£39.65 / £44.95 SALE
The variety of mycorrhizae found in Synergy ™ is particularly effective in intensive agriculture when fertilizers are used. Not all...More
£14.35 / £16.25 SALE
Black Pearl was the first product in Grotek's Greenline products. Grotek was the first to bring engineered charcoal to our industry i...More
£17.10 / £19.35 SALE
Grotek Impact Grow is a 2-part fertiliser specifically for the vegetative stage of plant growth in Hydroponic systems (inc...More
£22.95 / £26.00 SALE
Redesigned from innovative research, KickStart is formulated for seedlings, cuttings and transplants. By increasing the efficiency and de...More
£25.10 / £28.50 SALE
Grotek Impact Bloom is a 2-part fertiliser specifically for the flowering stage of plant growth in Hydroponic systems ...More
£21.30 / £24.15 SALE
Solo-Tek Grow is a unique one-part suspension specifically formulated for the vegetative stage of plant growth in Hydroponics (inclu...More
£21.30 / £24.15 SALE
Solo-Tek Bloom is a unique one-part suspension specifically formulated for the flowering stage of plant growth in Hydroponics (...More
£10.10 / £11.50 SALE
Grotek Pro-Silicate is designed to protect plants from stress such as heat, draught, cold, pests and disease. While not considered an ess...More
£22.20 / £25.15 SALE
Groteks Vitamax™ Pro is based on a university developed proprietary kelp extraction process. It contains unparalleled energy f...More
£28.50
Blossom Blaster Pro is a formulated to encourage profuse blooms and ensure high-quality flower development, this formula has a high ...More
£24.25 / £27.50 SALE
Heavy Bud Pro enhances every aspect of a quality flower or fruit. While every grower works for a higher yield, it is outstanding flavour ...More
£17.95 / £20.50 SALE
Grotek's Monster Bloom is a phosphorus and potassium additive that is used to gain density, weight and consistency of fruits and...More