{"product_id":"jacks-classic-5-12-26-part-a-water-soluble-fertilizer-growth-root","title":"Jack's Classic 5-12-26 Part A Water-Soluble Fertilizer - Growth \u0026 Root","description":"\u003cp\u003eIn this review of Jack's Classic 5-12-26 Part A water-soluble fertilizer, the bottom line is simple: this powder is for growers running continuous liquid feed or hydroponic systems who want a reliable mix focused on leaf growth and strong roots. The reviewer found the formula easy to mix, designed to be paired with Jack's 15-0-0 Part B, and particularly useful where micronutrient completeness and consistent mixing rates matter. For growers seeking a concentrated powdered feed that stretches into multiple gallons, this product delivers predictable, repeatable results.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e5-12-26 Analysis:\u003c\/strong\u003e A specific N-P-K balance formulated to encourage vigorous leaf growth and robust root systems in many crop types.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePowdered Concentrate:\u003c\/strong\u003e Powdered form lets users mix measured doses into water to produce multiple gallons of liquid feed, making supply usage efficient.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMixing Rates Included:\u003c\/strong\u003e Clear mixing ratios are printed on the bag so growers can prepare consistent feed for continuous liquid programs without guesswork.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMicronutrient Package:\u003c\/strong\u003e Added micronutrients are included so plants receive the trace elements needed for healthy growth without extra supplements.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDesigned for Continuous Liquid Feed:\u003c\/strong\u003e Intended use with hydroponic systems and continuous feed regimes, with mixing instructions by volume to simplify setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis fertilizer is aimed at indoor and greenhouse growers who operate hydroponic systems or any continuous liquid feed program and need a dependable part A to pair with a complementary part B. Hobbyists who mix their own feeds and commercial growers who value concentrated powdered fertilizers that stretch across many gallons will both appreciate the convenience and clarity of mixing instructions.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include gardeners who prefer ready-to-use liquid fertilizers or single-solution all-in-one bottles; because this product is a powdered part A intended to be combined with Part B, it is not a standalone complete feed for soil-only garden beds unless the user follows the two-part program.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eComprehensive nutrient profile for leaf growth and root strength when used as part A in a two-part program.\u003c\/li\u003e\n \u003cli\u003ePowdered form is economical and easy to store, allowing production of multiple gallons from measured mixes.\u003c\/li\u003e\n \u003cli\u003eIncluded micronutrients reduce the need for additional trace element supplements.\u003c\/li\u003e\n \u003cli\u003eMixing rates printed on the bag make it straightforward to prepare consistent feeds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eMust be used with Jack's 15-0-0 Part B or another compatible part B to complete the recommended feeding program; not a single-bottle solution.\u003c\/li\u003e\n \u003cli\u003eSome buyers note mixed opinions on cost, with a few finding it less budget-friendly depending on use pattern.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eWater-soluble powdered fertilizer (Part A)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eN-P-K analysis\u003c\/td\u003e\n\u003ctd\u003e5-12-26\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIntended program\u003c\/td\u003e\n\u003ctd\u003eContinuous liquid feed \/ hydroponic use\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003eMicronutrients and mixing rates by volume\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePackaging form\u003c\/td\u003e\n\u003ctd\u003ePowdered concentrate\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePair with\u003c\/td\u003e\n\u003ctd\u003eJack's 15-0-0 Part B (complementary Part B)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e2.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eJack's Classic 5-12-26 Part A is a practical choice for hydroponic and continuous feed growers who want a concentrated, micronutrient-inclusive powder to encourage leaf development and root strength. When paired with a compatible Part B, it stretches well, mixes consistently, and removes the need for extra micronutrient supplements, making it good value for growers who mix feeds regularly.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used on soil plants?\u003c\/strong\u003e\u003cbr\u003eYes, it can be mixed and applied to soil-grown plants, but it is designed as part A of a two-part continuous feed program and works best when paired with a compatible Part B.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this include micronutrients?\u003c\/strong\u003e\u003cbr\u003eYes, the formula includes added micronutrients so additional trace element feeding is generally unnecessary.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre mixing instructions provided?\u003c\/strong\u003e\u003cbr\u003eYes, proper mixing ratios by volume are supplied on the bag to help prepare the correct strength for continuous liquid feed systems.\u003c\/p\u003e","brand":"Jack's Classic","offers":[{"title":"Default Title","offer_id":48637452648667,"sku":"B07NLJ94WX","price":32.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71SBJR36jWL._AC_SL1500.jpg?v=1778653092","url":"https:\/\/gearmusthave.com\/products\/jacks-classic-5-12-26-part-a-water-soluble-fertilizer-growth-root","provider":"GearMustHave","version":"1.0","type":"link"}