{"product_id":"gt-super-pk","title":"GT Super PK | Phosphorus \u0026 Potassium Bloom Booster for Hydroponics | 1L, 5.5L, 20L","description":"\u003ch2\u003eMore Weight, More Density, Better Quality — That’s What PK Does at Flower\u003c\/h2\u003e\u003cp\u003eGT Super PK is a concentrated phosphorus and potassium (P\u0026amp;K) bloom booster added to your nutrient solution during the flowering and fruiting stage. When your plants shift into flower, their demand for P\u0026amp;K surges — and most base nutrients alone can’t keep up. GT Super PK fills that gap, driving heavier, denser flowers with more flowering sites, better aroma, and improved flavour from harvest to harvest.\u003c\/p\u003e\u003ch2\u003eWhy P\u0026amp;K Matters So Much at Flower\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e🌸 \u003cstrong\u003ePhosphorus (P)\u003c\/strong\u003e — critical for cell multiplication, energy transfer (ATP), and cell membrane function. At flower, it drives bud initiation, development, and the structural integrity of every flower site\u003c\/li\u003e\n\u003cli\u003e🌸 \u003cstrong\u003ePotassium (K)\u003c\/strong\u003e — the second most demanded mineral nutrient after nitrogen. Controls water movement inside cells (osmoregulation), stress tolerance against pathogens and environmental factors, and the density and quality of finished flowers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat to Expect From GT Super PK\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eIncreased flower weight and density\u003c\/strong\u003e — more P\u0026amp;K at the right time means bigger, heavier buds and fruits\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMore flowering sites\u003c\/strong\u003e — phosphorus supports the cell division that creates additional bud sites\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBetter quality at harvest\u003c\/strong\u003e — improved sweetness, aroma, and flavour in fruiting and flowering crops\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eStronger pest and disease resistance\u003c\/strong\u003e — potassium builds plant resilience through the stress of late-stage flowering\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eWorks with any base nutrient\u003c\/strong\u003e — GT Coco, GT Optimum, or any other brand\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eHow to Use GT Super PK\u003c\/h2\u003e\u003col\u003e\n\u003cli\u003eAdd \u003cstrong\u003e1–3ml of GT Super PK per litre\u003c\/strong\u003e of nutrient solution. Do not exceed \u003cstrong\u003e5ml per litre\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMix thoroughly\u003c\/li\u003e\n\u003cli\u003eAdjust pH to between \u003cstrong\u003e5.5 and 6.5\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eContinue adding Super PK throughout the flowering cycle\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eEC note:\u003c\/strong\u003e At 5ml\/L, GT Super PK adds approximately \u003cstrong\u003e0.7 mS\/cm\u003c\/strong\u003e to your EC. Consider reducing your base nutrient strength slightly at higher doses to stay within your target EC range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRecirculating systems:\u003c\/strong\u003e Add GT Super PK once per week when refreshing your reservoir.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRun-to-waste systems:\u003c\/strong\u003e Add when preparing each fresh nutrient solution.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e Introduce GT Super PK from the start of flowering and run it right through to flush for maximum effect on flower quality and weight.\u003c\/p\u003e\u003ch2\u003eChoose the Right Size\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1L\u003c\/strong\u003e — ideal for home growers and small flowering systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.5L\u003c\/strong\u003e — great value for regular growers running multiple cycles per year\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20L\u003c\/strong\u003e — best value for large-scale grows and commercial flowering operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eStack it:\u003c\/strong\u003e Pair GT Super PK with \u003cstrong\u003eGT Silica\u003c\/strong\u003e for stronger, more resilient flowers and \u003cstrong\u003eGT Fulvic\u003c\/strong\u003e for enhanced nutrient uptake — a proven combination for elite results at harvest.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eBy Growth Technology — trusted by Australian hydroponic growers for decades.\u003c\/em\u003e\u003c\/p\u003e","brand":"Growth Technology","offers":[{"title":"1L","offer_id":48212173258966,"sku":null,"price":20.0,"currency_code":"AUD","in_stock":true},{"title":"5.5L","offer_id":48212173291734,"sku":null,"price":50.0,"currency_code":"AUD","in_stock":true},{"title":"20L","offer_id":48212173324502,"sku":null,"price":130.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0809\/6097\/9158\/files\/GTSUPERPK2.jpg?v=1778212046","url":"https:\/\/growersdepot.com.au\/products\/gt-super-pk","provider":"Growers Depot","version":"1.0","type":"link"}