{"product_id":"grotek-insta-green","title":"Grotek Insta-Green","description":"\u003ch2\u003eA quick fix for yellowing, stressed plants\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eGrotek Insta-Green\u003c\/strong\u003e is a corrective tonic rather than a feeding-programme nutrient — it supplies soluble nitrogen alongside calcium, magnesium and iron to re-green plants that have gone pale or stalled after a deficiency, transplant or stretch of poor conditions. It works fast because it is designed to be absorbed quickly through either the leaf or the root, not blended into a long-term feed schedule.\u003c\/p\u003e\u003cp\u003eGrowers reach for it when something has gone visibly wrong — yellowing lower leaves, stunted growth after a knock — rather than running it as a routine additive.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast-acting nitrogen source\u003c\/strong\u003e for rapid re-greening\u003c\/li\u003e\n\u003cli\u003eSupplies \u003cstrong\u003ecalcium, magnesium and iron\u003c\/strong\u003e alongside nitrogen\u003c\/li\u003e\n\u003cli\u003eUsable as a \u003cstrong\u003efoliar spray or root feed\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuited to correcting stress from deficiency or transplant shock\u003c\/li\u003e\n\u003cli\u003eWorks across soil, soilless and hydroponic systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar:\u003c\/strong\u003e 15ml per litre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponics:\u003c\/strong\u003e 5ml per litre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil\/soilless:\u003c\/strong\u003e 5ml per litre\u003c\/li\u003e\n\u003cli\u003epH the feed water to 5.8–6.2 before application\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003cp\u003e\u003cstrong\u003eNPK:\u003c\/strong\u003e 3-0-0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplies:\u003c\/strong\u003e Soluble nitrogen, calcium, magnesium, iron\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible systems:\u003c\/strong\u003e Soil, soilless, hydroponics\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Grotek","offers":[{"title":"1L","offer_id":53500727722250,"sku":"NUT-GROT-INSTG-01","price":14.95,"currency_code":"GBP","in_stock":true},{"title":"4L","offer_id":53525360836874,"sku":null,"price":30.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/ec5db972cf78eefc1257298149c4d338_400x400_crop_center_21346b09-a2b2-49a3-a96e-23cf66de09e7.jpg?v=1786377724","url":"https:\/\/hydrocropshop.co.uk\/products\/grotek-insta-green","provider":"Hydro Crop Shop","version":"1.0","type":"link"}