{"product_id":"grenade-white-msa-max-silicic-acid","title":"Silicic Acid Plant Strengthener – Grenade White MSA Max","description":"\u003ch2\u003eThe strongest part of a plant is the part you never see being built.\u003c\/h2\u003e\n\u003cp\u003eSilicon is one of horticulture's quiet over-achievers. Most base feeds barely mention it, yet plants use it to reinforce their cell walls, the same way steel bars sit hidden inside concrete. The catch is that plants can only absorb silicon in one form: \u003cstrong\u003emonosilicic acid\u003c\/strong\u003e. Many silicon additives are potassium silicate, which has to convert before a root can use it. Grenade White skips the waiting room. It's a maximum-strength, highly stabilised monosilicic acid (also called orthosilicic acid) that's ready to go to work the moment it hits the root zone.\u003c\/p\u003e\n\u003ch3\u003eMSA Max – what it does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster root establishment\u003c\/strong\u003e for seedlings, cuttings and fresh repots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased chlorophyll production\u003c\/strong\u003e for deeper, greener growth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStronger stems and better plant structure\u003c\/strong\u003e – fewer flops, fewer stakes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreater resilience\u003c\/strong\u003e against environmental and pest stress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved nutrient availability\u003c\/strong\u003e within your root zone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSeed to harvest, and everything in between\u003c\/h3\u003e\n\u003cp\u003eGrenade White isn't just for serious growers. It's the fix for the Monstera stem that won't hold itself up, the leggy seedlings on the windowsill, the cuttings that sulk instead of rooting, and the chilli and tomato plants that buckle under the weight of their own crop. If a plant has stems, it has a use for silicon.\u003c\/p\u003e\n\u003ch3\u003eDo the maths\u003c\/h3\u003e\n\u003cp\u003eEven at the full recommended dose of 0.4ml per litre, one 100ml bottle treats \u003cstrong\u003e250 litres\u003c\/strong\u003e of water – about 15p per litre. If you water a houseplant collection with a 5 litre can once a week, a single bottle lasts around a year. It's the cheapest structural engineer you'll ever hire.\u003c\/p\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDose:\u003c\/strong\u003e 0.4ml per litre for full effect. Use 0.2ml per litre for brand-new seedlings and fresh cuttings for their first week or two, then step up to 0.4ml. Don't go above 0.4ml.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen:\u003c\/strong\u003e at every feed and watering, from seed or cutting all the way through to harvest. No breaks needed – silicon works by building up over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder:\u003c\/strong\u003e mix into plain water first, before any other nutrients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e keep in a cool, dry place.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003eAt 0.4ml\/L\u003c\/th\u003e\n\u003cth\u003eAt 0.2ml\/L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100ml\u003c\/td\u003e\n\u003ctd\u003e250 litres\u003c\/td\u003e\n\u003ctd\u003e500 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250ml\u003c\/td\u003e\n\u003ctd\u003e625 litres\u003c\/td\u003e\n\u003ctd\u003e1,250 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 Litre\u003c\/td\u003e\n\u003ctd\u003e2,500 litres\u003c\/td\u003e\n\u003ctd\u003e5,000 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 Litre\u003c\/td\u003e\n\u003ctd\u003e12,500 litres\u003c\/td\u003e\n\u003ctd\u003e25,000 litres\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003e🌱 Rose's Pro-Tip\u003c\/h3\u003e\n\u003cp\u003eSilicic acid always goes in first, into plain water, and the order genuinely matters. Adding it after your base feed can cause it to react before your plants ever see it. Mix it fresh on the day rather than leaving a pre-made batch sitting for days – and be consistent. Silicon rewards every-feed use far more than the occasional big dose.\u003c\/p\u003e\n\u003ch3\u003eBetter together: Grenade Black\u003c\/h3\u003e\n\u003cp\u003eGrenade White builds the frame; Grenade Black fills it out in bloom.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFree UK delivery on every Grenade order – no minimum spend.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eGrenade Nutrients, stocked by Black Flag Horticulture, Coventry.\u003c\/em\u003e\u003c\/p\u003e","brand":"Grenade Nutrients","offers":[{"title":"100ml","offer_id":54912807240026,"sku":"BFH-GRN-WHT-100ML","price":38.0,"currency_code":"GBP","in_stock":true},{"title":"250ml","offer_id":54912807272794,"sku":"BFH-GRN-WHT-250ML","price":60.0,"currency_code":"GBP","in_stock":true},{"title":"1 Litre","offer_id":54912807305562,"sku":"BFH-GRN-WHT-1L","price":190.0,"currency_code":"GBP","in_stock":true},{"title":"5 Litre","offer_id":54912807338330,"sku":"BFH-GRN-WHT-5L","price":760.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9861\/4106\/files\/rn-image_picker_lib_temp_89b50968-652f-4ac3-8ffd-3960035ba361.jpg?v=1791322049","url":"https:\/\/blackflaghorticulture.com\/sq\/products\/grenade-white-msa-max-silicic-acid","provider":"Black Flag Horticulture","version":"1.0","type":"link"}