{"product_id":"athena-stack-5-gallons","title":"Athena Stack - 5 Gallons","description":"\u003cp\u003eAthena Stack is a liquid kelp-based plant supplement derived from Ascophyllum nodosum, designed to support plant development through the transition from vegetative growth into early-to-mid flowering. Its simple 0-0-1 formulation provides soluble potash and kelp-derived humic acid, while naturally occurring kelp compounds support plants during the stretch and early flower-set period. Stack is intended as a targeted enhancer alongside Athena Grow A+B or Bloom A+B, not as a replacement for the base nutrients or Athena PK.\u003c\/p\u003e\n\n\n\u003cp\u003e• Product Type: Kelp-based plant supplement \/ biostimulant\u003cbr\u003e\n• Brand: Athena \/ Athena Ag\u003cbr\u003e\n• NPK: 0-0-1\u003cbr\u003e\n• Soluble Potash (K₂O): 1.0%\u003cbr\u003e\n• Humic Acid: 0.45%, derived from kelp\u003cbr\u003e\n• Primary Source: Kelp extract (Ascophyllum nodosum)\u003cbr\u003e\n• Application Methods: Foliar spray, root drench, transplant drench and seed soak\u003cbr\u003e\n• Foliar Rate: 7 mL\/gal, once weekly\u003cbr\u003e\n• Root Drench Rate: 1–2 mL\/gal, once weekly\u003cbr\u003e\n• Foliar Window: Final week of vegetative growth through week 3 of flower; stop foliar spraying after week 3\u003cbr\u003e\n• Root Drench Window: Final week of vegetative growth through week 4–5 of flower \/ until vertical growth stops\u003cbr\u003e\n• Transplant Rate: 2 mL\/gal; soak bare roots for 30–60 seconds or water in after transplant\u003cbr\u003e\n• Seed Treatment: 4 mL\/gal; soak for 1–2 minutes before planting\u003cbr\u003e\n• Irrigation Compatibility: Drip, recirculating and run-to-waste systems\u003cbr\u003e\n• Base Nutrient Compatibility: Used alongside Athena Grow A+B or Bloom A+B\u003cbr\u003e\n• IPM Compatibility: Can be mixed with Athena IPM for a combined foliar application\u003cbr\u003e\n• pH Adjustment: Not required at recommended rates\u003cbr\u003e\n• Mixing: Add Stack last to the reservoir after base nutrients are mixed\u003cbr\u003e\n• Storage: Natural separation is expected; shake thoroughly before every use\u003cbr\u003e\n• Available Sizes: 32 oz, 1 gallon and 5 gallons\u003c\/p\u003e\n\n\n\u003cp\u003eKey Advantage: Athena Stack fills a different role from Athena PK. Stack is an early flowering\/transition-stage kelp supplement, providing biostimulant support and a small amount of potassium without adding phosphorus or significant nitrogen. Athena specifically positions it for the stretch and early flower-set period, while the separate 0-4-5 PK product is used later for mid-to-late flowering.\u003c\/p\u003e","brand":"Hydro Supply Co.","offers":[{"title":"Default Title","offer_id":67610202570788,"sku":"ATNA-LQ-STK-5G","price":1006.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0254\/3914\/1924\/files\/athena-stack-lq-stk-32oz_fdfefd88-9ba6-4a87-8a8e-63580fd024cf.webp?v=1791318018","url":"https:\/\/www.growitdepot.com\/products\/athena-stack-5-gallons","provider":"Grow It Depot","version":"1.0","type":"link"}