{"product_id":"crazy-hills-spark","title":"Crazy Hills Spark – Organic Seaweed Bloom Stimulant","description":"\u003ch2\u003eArctic seaweed flowering stimulant with calcium and magnesium\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCrazy Hills Spark\u003c\/strong\u003e is an organic \u003cstrong\u003eflowering stimulant\u003c\/strong\u003e built on \u003cstrong\u003ecold-pressed Arctic seaweed\u003c\/strong\u003e (\u003cem\u003eAscophyllum nodosum\u003c\/em\u003e), fortified with \u003cstrong\u003epotassium, calcium, magnesium and sulphur\u003c\/strong\u003e and carrying more than \u003cstrong\u003e60 trace elements\u003c\/strong\u003e. The seaweed also brings its naturally occurring plant growth regulators – auxins, cytokinins and gibberellins – and complex carbohydrates that fuel the plant's metabolism. Started gently in veg and stepped up through bloom, it builds sturdy stems, helps flowers set and fill out, and improves tolerance to heat, cold and stress, in \u003cstrong\u003esoil, coco or hydro\u003c\/strong\u003e and as a foliar spray.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSturdier stems and structure\u003c\/strong\u003e – calcium, magnesium and seaweed extract to carry heavier flowers and fruit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEarlier, fuller flower set\u003c\/strong\u003e – driven by the seaweed's natural auxins and cytokinins\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMore energy for photosynthesis\u003c\/strong\u003e from seaweed compounds and complex carbohydrates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetter stress tolerance\u003c\/strong\u003e in heat, cold and other difficult conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e60+ micronutrients\u003c\/strong\u003e for balanced nutrition, NPK \u003cstrong\u003e0.2-0.01-2\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast foliar fix\u003c\/strong\u003e for calcium and magnesium shortfalls at \u003cstrong\u003e1 ml per litre\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCalcium and magnesium shortfalls under strong LED lighting\u003c\/h3\u003e\u003cp\u003ePlants under modern LED lighting take up more calcium and magnesium, and more intense light raises their appetite for every nutrient. When supply falls behind, growth softens, leaves show deficiency and flowering slows. Spark supplies calcium and magnesium in an organic, seaweed-based form alongside potassium for \u003cstrong\u003eflowering\u003c\/strong\u003e, and as a foliar spray it corrects a shortfall and relieves plant stress quickly. Crazy Hills' advice is simple: under intense light, raise the Spark rate if plants ask for it.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVegetative stage:\u003c\/strong\u003e start at \u003cstrong\u003e0.5 ml per litre\u003c\/strong\u003e in week 1, \u003cstrong\u003e1 ml\u003c\/strong\u003e in weeks 2–3 and \u003cstrong\u003e1.5 ml\u003c\/strong\u003e in week 4.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlowering stage:\u003c\/strong\u003e \u003cstrong\u003e2–2.5 ml per litre\u003c\/strong\u003e in weeks 1–2, \u003cstrong\u003e3 ml\u003c\/strong\u003e in weeks 3–4, \u003cstrong\u003e4 ml\u003c\/strong\u003e in weeks 5–6, \u003cstrong\u003e5 ml\u003c\/strong\u003e in week 7 and \u003cstrong\u003e3 ml\u003c\/strong\u003e in week 8.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar:\u003c\/strong\u003e \u003cstrong\u003e1 ml per litre\u003c\/strong\u003e to correct calcium\/magnesium deficiency or relieve stress quickly – spray with the lights off or low.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixing:\u003c\/strong\u003e add with your base nutrient, stir, then check EC and adjust pH to \u003cstrong\u003e5.8–6.2 in veg\u003c\/strong\u003e and \u003cstrong\u003e6.0–6.5 in bloom\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e organic flowering stimulant (Arctic algae blend)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNPK:\u003c\/strong\u003e 0.2-0.01-2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIngredients:\u003c\/strong\u003e cold-pressed Arctic seaweed extract (Ascophyllum nodosum), potassium (K₂O), calcium, magnesium, sulphur, natural seaweed growth regulators (auxins, cytokinins, gibberellins), organic complex carbohydrates, trace elements (Fe, Mn, Zn, Cu, B)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicronutrients:\u003c\/strong\u003e more than 60 trace elements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDose:\u003c\/strong\u003e 0.5–1.5 ml\/L in veg, 2–5 ml\/L in bloom; 1 ml\/L as a foliar spray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolution pH:\u003c\/strong\u003e 5.8–6.2 in veg, 6.0–6.5 in bloom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowing media:\u003c\/strong\u003e soil, coco, hydro and foliar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage:\u003c\/strong\u003e vegetative through flowering, highest in mid to late bloom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Crazy Hills\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"hcs-dosing\" style=\"margin:32px 0 0;border:1px solid #e6e6e6;border-radius:12px;overflow:hidden;font-family:Montserrat,-apple-system,'Segoe UI',sans-serif;\"\u003e\n\u003cdiv style=\"background:#101010;padding:16px 20px;border-bottom:3px solid #efc04c;\"\u003e\n\u003cdiv style=\"color:#ffffff;font-size:17px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;\"\u003eFeed Chart\u003c\/div\u003e\n\u003cdiv style=\"margin-top:6px;color:#b8b8b8;font-size:12px;line-height:1.5;\"\u003eCRAZY HILLS Spark · soil, coco and hydro · added to the feed at every watering\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;color:#2b2b2b;background:#fff;\"\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003cth style=\"text-align:left;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;\"\u003eStage\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 14px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 1 L\u003c\/th\u003e\n\u003cth style=\"text-align:right;padding:10px 20px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6b6b6b;font-weight:600;white-space:nowrap;\"\u003ePer 10 L\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eVegetative week 1\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e0.5 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e5 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fcfaf4;\"\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eVegetative weeks 2–3\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e1 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e10 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eVegetative week 4\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e1.5 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e15 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fcfaf4;\"\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eBloom weeks 1–2\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e2–2.5 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e20–25 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eBloom weeks 3–4\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e3 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e30 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fcfaf4;\"\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eBloom weeks 5–6\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e4 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e40 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eBloom week 7\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e5 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e50 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#fcfaf4;\"\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eBloom week 8\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e3 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e30 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;\"\u003eFoliar spray\u003c\/td\u003e\n\u003ctd style=\"padding:12px 14px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;font-weight:600;\"\u003e1 ml\u003c\/td\u003e\n\u003ctd style=\"padding:12px 20px;border-top:1px solid #ededed;text-align:right;white-space:nowrap;color:#6b6b6b;\"\u003e10 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#101010;padding:12px 20px;font-size:12px;color:#b8b8b8;line-height:1.6;\"\u003e\n\u003cspan style=\"color:#efc04c;font-weight:600;\"\u003eNote\u003c\/span\u003e — Crazy Hills' own feeding chart (EU). Target pH 5.8–6.2 in veg and 6.0–6.5 in bloom; heavy-feeding crops can take 10–20% more. Under strong LED lighting raise Spark if plants show calcium or magnesium need. Set EC first, then adjust pH, once every base nutrient and additive is in the tank.\u003c\/div\u003e\n\u003c\/div\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eIs Spark a base nutrient?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eNo. With an NPK of 0.2-0.01-2 it is a stimulant that runs alongside a base feed – Crazy Hills pair it with Upthrive in veg and Prosper in bloom.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eCan I use it as a foliar spray?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes – 1 ml per litre, to correct calcium or magnesium deficiency or relieve stress quickly. Spray with the lights off or low.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhere do its growth regulators come from?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eFrom the Arctic seaweed itself: Ascophyllum nodosum naturally contains auxins, cytokinins and gibberellins, which Crazy Hills list among Spark's ingredients.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Crazy Hills","offers":[{"title":"5L","offer_id":53931041718538,"sku":"NUT-CRAZ-004-01","price":98.9,"currency_code":"GBP","in_stock":true},{"title":"10L","offer_id":53931041751306,"sku":"NUT-CRAZ-004-02","price":188.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/crazy-hills-spark-5l-1.jpg?v=1792294950","url":"https:\/\/hydrocropshop.co.uk\/products\/crazy-hills-spark","provider":"Hydro Crop Shop","version":"1.0","type":"link"}