{"product_id":"plant-magic-hydro-coco-silicon","title":"Plant Magic - Silicon","description":"\u003csection class=\"gh-product-listing\"\u003e\n\n\u003ch2\u003ePlant Magic - Silicon – Cell Wall Strengthener \u0026amp; Stress Defence for Hydro \u0026amp; Coco\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Growers running hydroponic or coco systems who want stronger stems, better pest resistance, and bigger yields without overcomplicating their feed schedule\u003c\/p\u003e\n\n\u003cdiv class=\"gh-our-thoughts\" role=\"note\" aria-label=\"Our thoughts\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eOur thoughts\u003c\/strong\u003e\u003cbr\u003e\nSilicon is one of those additives that actually does what it says on the tin. Plant Magic's Hydro Silicon is properly formulated for recirculating systems, strengthens plants where they need it most, and handles the pH side of things too. One we recommend a lot for growers running heavier crops.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003ePlant Magic - Silicon is a \u003cstrong\u003epotassium silicate-based supplement\u003c\/strong\u003e designed to strengthen plant cell walls, improve nutrient uptake, and boost resistance to environmental stress. Unlike general nutrient bottles, silicon sits separately because it doesn't play well with other elements in solution—which is why this standalone additive approach actually makes sense. It's formulated specifically for hydroponic and coco systems, and works by building armour around your plants' cells, making them tougher, more productive, and better equipped to handle heat, pests, and nutrient lock-out.\u003c\/p\u003e\n\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003ePlant Magic Silicon sits in the \u003cstrong\u003emid-tier of UK silicon supplements\u003c\/strong\u003e by price and performance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStronger than basic silica products, specifically engineered for hydro and coco rather than a one-size-fits-all formula\u003c\/li\u003e\n\u003cli\u003eIncludes balanced NPK (nitrogen, phosphorus, potassium) to aid silicon transport into plant cells—you're not just getting raw silica\u003c\/li\u003e\n\u003cli\u003eAlso works as a pH buffer, helping manage acidic reservoirs without a separate pH-up product\u003c\/li\u003e\n\u003cli\u003eUK-formulated by Plant Magic's PhD-level team, not imported generic stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompetitors like Advanced Nutrients Rhino Skin are more expensive and over-concentrated. RAW Silica is cheaper but pH-neutral, so you don't get the dual function. Plant Magic hits the sweet spot for UK growers who want proper science without paying premium markup.\u003c\/p\u003e\n\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003eSilicon works best when used consistently from veg through to around two weeks before harvest. Dosing depends on your system:\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHydroponics (recirculating systems)\u003c\/strong\u003e\u003cbr\u003e\nDose at 0.5–1ml per litre of nutrient solution. Add to your reservoir at the start of each water change or top-up. Use with every watering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCoco systems (hand-fed or drip)\u003c\/strong\u003e\u003cbr\u003e\nDose at 1–2ml per litre of water. Apply with each feed, same as your main nutrients.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRoot drench (soil or pot systems)\u003c\/strong\u003e\u003cbr\u003e\nDilute 1ml to 2 litres of water and apply as a standard watering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFoliar spray (optional boost)\u003c\/strong\u003e\u003cbr\u003e\nDilute 0.5–1.5ml per litre of water and spray plants thoroughly, hitting both tops and undersides of leaves. Best done in low light to avoid leaf burn.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant: Monitor your pH\u003c\/strong\u003e\u003cbr\u003e\nPlant Magic Silicon is alkaline and will raise pH in your solution. If you're running an acidic system, this is actually useful. Just check your pH regularly—don't let it drift above 6.5 in hydro.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProduct type: \u003cstrong\u003ePotassium silicate-based supplement\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eNitrogen: \u003cstrong\u003e0.12%\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePhosphorus: \u003cstrong\u003e0.03%\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePotassium: \u003cstrong\u003e5.06%\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended dosage (hydro): \u003cstrong\u003e0.5–1ml per litre\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended dosage (coco\/soil): \u003cstrong\u003e1–2ml per litre\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eApplication window: \u003cstrong\u003eVegetative phase through flowering, ending ~2 weeks pre-harvest\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAvailable sizes: \u003cstrong\u003e125ml, 250ml, 1L, 5L, 10L\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003epH effect: \u003cstrong\u003eRaises solution pH (alkaline)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eApplication methods: \u003cstrong\u003eRoot drench, foliar spray, reservoir additive\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponic growers running recirculating systems or NFT setups\u003c\/li\u003e\n\u003cli\u003eCoco growers looking to strengthen stems and prevent collapse under heavy crop loads\u003c\/li\u003e\n\u003cli\u003eAnyone dealing with environmental stress—heat spikes, pest pressure, or variable growing conditions\u003c\/li\u003e\n\u003cli\u003eGrowers chasing bigger, denser yields without adding extra complexity to their feed schedule\u003c\/li\u003e\n\u003cli\u003eUK-based cultivators who value locally-formulated products backed by proper science\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eParticularly well suited to growers running \u003cstrong\u003eheavy crop loads\u003c\/strong\u003e where stem strength matters, or those managing \u003cstrong\u003eacidic hydro reservoirs\u003c\/strong\u003e where the pH-raising side benefit is genuinely useful.\u003c\/p\u003e\n\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eThis is proper silicon supplementation for people actually growing in hydro or coco. It strengthens cell walls where it counts—stems stay upright, leaves stay resilient, and you get better nutrient uptake across the board. The fact it also handles pH makes it do double duty, which is just smart formulation.\u003c\/p\u003e\n\u003cp\u003ePlant Magic Silicon does exactly what a silicon product should do without the premium pricing of imported competitors. If you're running hydro or coco and not using silicon yet, this is a good time to start. Worth picking up while stock lasts.\u003c\/p\u003e\n\n\u003c\/section\u003e","brand":"PLANT MAGIC","offers":[{"title":"1 Litre","offer_id":47916560580778,"sku":"150065","price":20.99,"currency_code":"GBP","in_stock":true},{"title":"5 Litre","offer_id":47916560613546,"sku":"150067","price":68.99,"currency_code":"GBP","in_stock":true},{"title":"10 Litre","offer_id":47916560646314,"sku":"150069","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/150067_-_silicon_5l_bbbe2717-651c-4580-ae7b-d434df4dc3a7.jpg?v=1769196097","url":"https:\/\/growershouse.co.uk\/products\/plant-magic-hydro-coco-silicon","provider":"Growers House ","version":"1.0","type":"link"}