{"product_id":"zinc-sulfate-powder-25-lb-bag","title":"Zinc Sulfate Powder (25 lb bag)","description":"\u003cp\u003eZinc Sulfate Powder in a 25 lb bag is the primary family option for multiple garden beds, orchards, vineyards, and small-acreage applications. It provides a concentrated, water-soluble source of zinc and sulfur for correcting a deficiency confirmed by soil or plant-tissue testing.\u003c\/p\u003e\u003ch3\u003eGuaranteed analysis and role\u003c\/h3\u003e\u003cp\u003eThe powder contains 35.5% zinc and 17.5% sulfur. Zinc supports plant enzyme systems, protein formation, and normal growth, but plants require it only in small quantities. Symptoms such as interveinal chlorosis, shortened internodes, or reduced leaf size can have several causes, so testing is more reliable than diagnosis by appearance alone.\u003c\/p\u003e\u003cp\u003eThis product is not a complete fertilizer. It should be incorporated into a broader fertility plan rather than used as a general-purpose feeding product. Soil pH and interactions with other nutrients can affect zinc availability.\u003c\/p\u003e\u003ch3\u003eApplication options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil application:\u003c\/strong\u003e Incorporate at the rate recommended by a current soil test.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar application:\u003c\/strong\u003e Published guidance is 2–5 lb per acre, but concentration and crop timing must be managed carefully to reduce leaf burn or fruit marking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFertigation:\u003c\/strong\u003e Use only where the product is compatible with the irrigation system and the calculated rate can be distributed evenly across the intended area.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMeasure accurately, avoid inhaling dust, and follow crop- and region-specific recommendations. More zinc is not better; excessive application can damage plants and interfere with other nutrients.\u003c\/p\u003e\u003ch3\u003eChoose the right package\u003c\/h3\u003e\u003cp\u003eThis 25 lb repack offers more coverage than a small garden package without requiring a full bulk sack. For large farms or repeated applications, see the \u003ca href=\"https:\/\/www.groworganic.mom\/products\/zinc-sulfate-powder-50-lb\"\u003e50 lb original package\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOrganic status:\u003c\/strong\u003e This repackaged 25 lb size is not represented as organic or as listed or approved for certified organic production. The 50 lb package’s OMRI\/CDFA status does not transfer to this repack.\u003c\/p\u003e\u003cp\u003eLearn about \u003ca href=\"https:\/\/www.groworganic.mom\/blogs\/articles\/meet-the-secondary-macronutrients-micronutrients-your-plants-need\"\u003eplant micronutrients\u003c\/a\u003e or compare other \u003ca href=\"https:\/\/www.groworganic.mom\/collections\/trace-minerals-fertilizer\"\u003etrace-mineral fertilizers\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCalifornia Proposition 65 WARNING:\u003c\/strong\u003e This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm; for more information, visit \u003ca href=\"https:\/\/www.P65Warnings.ca.gov\" target=\"_blank\" rel=\"noopener\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eCompare this product with additional \u003ca href=\"\/collections\/nutrient-specific-fertilizers\"\u003enutrient-specific fertilizers\u003c\/a\u003e selected for garden and farm fertility programs.\u003c\/p\u003e","brand":"Grow Organic","offers":[{"title":"Default Title","offer_id":41677553238129,"sku":"F717","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/F717_Zinc_Sulfate_Powder_5_lb_bag_closeup.jpg?v=1766096332","url":"https:\/\/www.groworganic.mom\/products\/zinc-sulfate-powder-25-lb-bag","provider":"Grow Organic","version":"1.0","type":"link"}