Growstone makes growing media and plant care products built around smart, science-backed solutions. Their approach is simple: solve real grower problems without reaching for chemicals. Whether you're dealing with pests, managing your growing medium, or looking for cleaner ways to protect your plants, Growstone products are designed to work effectively while staying safe for your plants, your home, and the people in it.
💚 Gnat Control and Top Dressings
Gnat Nix! is a 100% chemical-free top dressing that stops tiny flying gnats by creating a physical barrier they simply cannot get through. Pour a 1.5 to 2cm layer over your growing medium and it blocks adult gnats from laying eggs while trapping any already inside, breaking the life cycle at multiple stages. Scientifically proven in university trials, safe around people, pets, and plants, and effective in both dry and moist conditions. Available in a 10L bag, suited to home growers and indoor grow rooms.
💡 Why Growstone?
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100% chemical-free solutions : no pesticides, no toxins, nothing harmful to plants or people
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Physical barrier technology : works mechanically, not chemically, so pests can't build resistance
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Breaks the pest life cycle at multiple stages : targets both adults and larvae simultaneously
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Scientifically proven : validated in university trials, not just marketing claims
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Works indoors and outdoors : effective in dry and moist growing conditions
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Safe around people, pets, and plants : a genuinely worry-free solution
Shop the full Growstone range at Growers Depot with more products and categories to explore.
