{"title":"Products for Lowering High Soil pH","description":"\u003ch2\u003eProducts for Lowering High Soil pH\u003c\/h2\u003e\u003cp\u003eShop elemental sulfur and other labeled materials used to acidify alkaline soil or support acid-loving crops. Fertilizers for acid-loving plants may supply appropriate nutrients without necessarily changing soil pH substantially.\u003c\/p\u003e\u003ch3\u003eHow to Choose\u003c\/h3\u003e\u003cp\u003eUse a current soil test and follow a calculated recommendation. Soil texture, existing pH and material type affect the amount and time required; avoid repeated unmeasured applications.\u003c\/p\u003e\u003cp\u003eCompare \u003ca href=\"\/collections\/acid-loving-fertilizer\"\u003eacid-loving plant fertilizers\u003c\/a\u003e, \u003ca href=\"\/collections\/correct-low-ph\"\u003eproducts for low soil pH\u003c\/a\u003e and \u003ca href=\"\/collections\/soil-testing\"\u003esoil tests\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"acid-mix-4-3-6-5-lb-box","title":"Acid Mix 4-3-6 (5 lb Box)","description":"\u003ch2\u003eFertilizer for Blueberries, Azaleas, and Other Acid-Loving Plants\u003c\/h2\u003e\n\u003cp\u003eDown To Earth Acid Mix 4-3-6 is formulated for plants that grow best in acidic soil, including blueberries, raspberries, rhododendrons, azaleas, hydrangeas, evergreen trees, and many ornamental shrubs. The 5 lb box is a versatile choice for home gardens with several plants or repeated seasonal applications.\u003c\/p\u003e\n\u003cp\u003eThe 4-3-6 analysis provides primary nutrients, while calcium, magnesium, sulfur, and humic acids add useful secondary components. This granular fertilizer can be mixed into soil for new plantings or applied around established plants.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFormulated for berries, acid-loving flowering shrubs, and evergreen trees and shrubs.\u003c\/li\u003e\n\u003cli\u003eGranular form is suitable for soil incorporation, side-dressing, and application beneath the drip line.\u003c\/li\u003e\n\u003cli\u003eSupplies a 4-3-6 NPK analysis plus 3% calcium, 2% magnesium, and 2% sulfur.\u003c\/li\u003e\n\u003cli\u003eContains 2.5% humic acids derived from Leonardite.\u003c\/li\u003e\n\u003cli\u003eMade from cottonseed meal, fish bone meal, langbeinite, rock phosphate, and seaweed meal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTotal nitrogen: 4%\u003c\/li\u003e\n\u003cli\u003eAvailable phosphate: 3%\u003c\/li\u003e\n\u003cli\u003eSoluble potash: 6%\u003c\/li\u003e\n\u003cli\u003eCalcium: 3%\u003c\/li\u003e\n\u003cli\u003eMagnesium: 2%\u003c\/li\u003e\n\u003cli\u003eSulfur: 2%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Guidance\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNew berry beds:\u003c\/strong\u003e Apply 2.5–5 lb per 100 linear feet and mix thoroughly into the top 3 inches of soil. For new berry plants one to two years old, mix approximately 1\/2 cup with the backfill soil, fill around the plant, and water well.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEstablished berries:\u003c\/strong\u003e Apply approximately 1 cup per plant in early spring, mix it into the soil surface, and water thoroughly. Repeat when blooms appear. When using a fall application, use approximately half the normal rate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTrees and shrubs:\u003c\/strong\u003e For established plants, spread approximately 1 lb per inch of trunk diameter from the base toward the drip line, mix lightly into the soil surface, and water well. For new trees and shrubs, mix 1–2 cups with the backfill soil before watering.\u003c\/p\u003e\n\u003cp\u003eApplication rates can vary by plant size and local soil conditions. Follow the current product label and use a soil test when possible.\u003c\/p\u003e\n\u003ch3\u003eChoose Your Package Size\u003c\/h3\u003e\n\u003cp\u003eSelect the \u003ca href=\"\/products\/dte-acid-mix-436-1-lb-box\"\u003e1 lb box\u003c\/a\u003e for containers and small plantings, this 5 lb box for typical home-garden use, or the \u003ca href=\"\/products\/acid-mix-25-lb-bag\"\u003e25 lb bag\u003c\/a\u003e for larger berry rows and landscapes.\u003c\/p\u003e\n\u003cp\u003eShop more options in our \u003ca href=\"\/collections\/acid-loving-fertilizer\"\u003eacid-loving fertilizer collection\u003c\/a\u003e or \u003ca href=\"\/collections\/organic-fertilizer\"\u003enatural and organic fertilizer collection\u003c\/a\u003e.\u003c\/p\u003e","brand":"Down to Earth","offers":[{"title":"Default Title","offer_id":21543424819313,"sku":"F008","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/acid-mix-4-3-6-5-lb-box.png?v=1776284897"},{"product_id":"cottonseed-meal-5-lb-box","title":"Cottonseed Meal (5 lb Box)","description":"\u003ch2\u003eCottonseed Meal (5 lb Box)\u003c\/h2\u003e\u003cp\u003eCottonseed Meal is an excellent all purpose fertilizer for plants that need a low pH such as azaleas, rhododendrons, potatoes, and roses. A high quality plant source of nitrogen, apply our Cottonseed Meal in early spring to promote vegetative growth.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eReputed to be a good choice for roses, azaleas, rhododendrons and blueberries\u003c\/li\u003e\r\n\u003cli\u003e6.0% N - 2.0% P - 1.0% K\u003c\/li\u003e\r\n\u003cli\u003eUse at 2.5-5 lbs per 100 square feet, apply 2-4 oz as a top dress 1-2 times throughout the growing season\u003c\/li\u003e\r\n\u003cli\u003eFor trees and shrubs use 1 lb per 1 inch of trunk diameter and spread around the base outwards to the dripline.\u003c\/li\u003e\r\n\u003c\/ul\u003e\n\n\u003cp\u003eFor complete application directions and safety information, please review the manufacturer’s current \u003ca href=\"https:\/\/www.groworganic.mom\/cdn\/shop\/files\/f023-b.pdf\" target=\"_blank\" rel=\"noopener\"\u003eProduct Label\u003c\/a\u003e and \u003ca href=\"https:\/\/www.groworganic.mom\/cdn\/shop\/files\/f023-m.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eBefore using Cottonseed Meal, confirm the nutrient need with a soil test or crop recommendation and follow the current package directions. Account for compost and other fertilizers already applied, measure the product carefully, avoid concentrated contact with stems or foliage, water as directed, and store the closed package in a cool, dry location.\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":"Down to Earth","offers":[{"title":"Default Title","offer_id":21543433306225,"sku":"F023","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/cottonseed-meal-5-lb-box.png?v=1776882451"},{"product_id":"acid-mix-25-lb-bag","title":"Acid Mix (25 lb Bag)","description":"\u003ch2\u003e25 lb Acid Mix for Larger Berry and Landscape Plantings\u003c\/h2\u003e\n\u003cp\u003eDown To Earth Acid Mix 4-3-6 in the 25 lb bag is the bulk option for larger berry rows, established acid-loving landscapes, and gardeners who expect to make repeated applications across many plants. It offers the same formulation as the smaller boxes in a package suited to greater coverage.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the 25 lb Bag?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for larger gardens, berry plantings, and landscape use.\u003c\/li\u003e\n\u003cli\u003eUseful when treating multiple blueberries, raspberries, azaleas, rhododendrons, hydrangeas, or evergreens.\u003c\/li\u003e\n\u003cli\u003eGranular form supports soil incorporation and surface application around established plants.\u003c\/li\u003e\n\u003cli\u003eProvides a 4-3-6 analysis plus calcium, magnesium, sulfur, and humic acids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePlanning a Bulk Application\u003c\/h3\u003e\n\u003cp\u003eMeasure the planting area or trunk diameter before calculating how much product you need. Apply according to the current 25 lb package label, distribute the fertilizer evenly, work it lightly into the soil where appropriate, and water thoroughly. Soil testing is recommended because plant needs vary with existing fertility and soil pH.\u003c\/p\u003e\n\u003ch3\u003eComplete Product Guide and Other Sizes\u003c\/h3\u003e\n\u003cp\u003eSee the \u003ca href=\"\/products\/acid-mix-4-3-6-5-lb-box\"\u003e5 lb Acid Mix product guide\u003c\/a\u003e for the complete guaranteed analysis, ingredient list, and general application guidance. For containers or a small number of plants, consider the \u003ca href=\"\/products\/dte-acid-mix-436-1-lb-box\"\u003e1 lb box\u003c\/a\u003e.\u003c\/p\u003e","brand":"Down to Earth","offers":[{"title":"Default Title","offer_id":21543437598833,"sku":"F063","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/acid-mix-25-lb-bag.png?v=1776450523"},{"product_id":"collections-organic-fertilizer","title":"Organic Sulfur 90% (Granular) 50 lbs","description":"\u003cp\u003eOrganic Sulfur 90% is a concentrated elemental sulfur amendment formulated with bentonite clay for fast, dependable soil pH correction and long-term soil health. Dust-free granules are easy to spread; when they absorb moisture, the bentonite swells and breaks apart, releasing fine sulfur evenly through the soil profile for consistent performance across beds and production fields.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGranular elemental sulfur blended with bentonite clay\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalysis:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e90% S (elemental)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBehavior:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMoisture-activated; granules swell and disperse for uniform soil coverage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBag Size:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e50 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Use:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLowering soil pH (acidifying) and supplying plant-available sulfur\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlkaline soils; acid-loving crops and ornamentals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBroadcast, banded, or incorporated into soil\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Growers Use It\u003c\/h3\u003e\n\u003cp\u003eSulfur is more than a soil acidifier—it is an essential plant nutrient involved in protein synthesis and enzyme activation. By lowering pH more quickly than other amendments, this formulation improves availability of phosphorus, iron, and key micronutrients already present in the soil. It also enhances nitrogen efficiency, helping gardeners and farmers get more value from existing fertility programs and supporting vigorous growth, robust root development, and high-quality harvests.\u003c\/p\u003e\n\u003ch3\u003ePerformance \u0026amp; Crop Suitability\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFast, reliable pH correction for alkaline soils in gardens and production acreage\u003c\/li\u003e\n\u003cli\u003eEven dispersion of fine sulfur after wetting ensures consistent results across beds and rows\u003c\/li\u003e\n\u003cli\u003eIdeal for acid-loving crops and ornamentals such as\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eVaccinium corymbosum\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e(blueberries),\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eVitis vinifera\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e(grapes), and\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eRhododendron\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003espp.\u003c\/li\u003e\n\u003cli\u003eSupports soil biology and nutrient cycling for long-term soil health and plant care\u003c\/li\u003e\n\u003cli\u003eDurable, dust-free granules for easy handling and precise field applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlways soil test\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto determine proper rates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical rates:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1–5 lb per 100 sq ft (garden beds) or 200–2000 lb per acre (field use), depending on soil pH, texture, and target crop.\u003c\/li\u003e\n\u003cli\u003eA little sulfur can stimulate soil micro-life; over-application may be harmful, and some plants are sulfur-sensitive—apply with care.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSustainable Growing\u003c\/h3\u003e\n\u003cp\u003eThis moisture-activated, granular elemental sulfur provides a natural, long-lasting amendment that aligns with organic and sustainable growing practices. Unlike mined sulfur sources, the bentonite-enhanced granule delivers consistent performance and reliable application, helping you balance fertility, manage pH, and improve overall field performance.\u003c\/p\u003e\n\u003cp\u003eLearn more about plant nutrition in our article on\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.groworganic.mom\/blogs\/articles\/meet-the-secondary-macronutrients-micronutrients-your-plants-need\" target=\"_blank\"\u003eMacro and Micro Nutrients\u003c\/a\u003e, or explore complementary\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.groworganic.mom\/collections\/fertilizer-growing-supplies\" target=\"_blank\"\u003eFertilizer \u0026amp; Growing Supplies\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto support garden and farm productivity.\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":"Montana Sulfur","offers":[{"title":"Default Title","offer_id":21543469318257,"sku":"F2263","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/F2263_Org_Sulfur_90__Granular_50lbs_front.jpg?v=1766094771"},{"product_id":"soil-sulfur-5-lb-box","title":"Soil Sulfur (5 lb)","description":"\u003ch2\u003eSoil Sulfur (5 lb)\u003c\/h2\u003e\u003cp\u003eIn addition to adjusting the pH level of garden and lawn soils, Sulfur is an also an essential protein ingredient as well as plant nutrient which helps maintain the green color of leaves and aids in the use of nitrogen fertilizer by the plant.\u003c\/p\u003e\u003cp\u003eSoil sulfur is essential because it directly influences the pH levels of your soil. pH, which stands for \"potential of hydrogen,\" measures the acidity or alkalinity of the soil. Soil pH affects nutrient availability to plants and the overall microbial activity in the soil. Sulfur is particularly useful for adjusting pH in soils that are too alkaline or have high pH values.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eContains elemental Sulfur\u003c\/li\u003e\n\u003cli\u003eIdeal for amending alkaline soils\u003c\/li\u003e\n\u003cli\u003eGranulated for easy application\u003c\/li\u003e\n\u003cli\u003eAcidification: One of the primary roles of soil sulfur is to lower soil pH by increasing soil acidity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUse according to the current package directions and within a soil-test-based fertility plan. Account for other amendments already applied, measure carefully, water as directed, and store the closed package in a cool, dry location.\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":"EB Stone","offers":[{"title":"Default Title","offer_id":21543482130545,"sku":"F290","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/EBS-Simples-Fert-Soil-Sulfur-5LB-F_web_46ad27ae-7e0c-41bb-bbb7-f2c8e39f9582.png?v=1780619070"},{"product_id":"cottonseed-meal-50-lb","title":"Cottonseed Meal (50 lb)","description":"\u003ch2\u003eCottonseed Meal – Slow-Release, Nutrient-Rich Soil Amendment\u003c\/h2\u003e\n\u003cp\u003eCottonseed meal is a trusted, slow-release fertilizer with a typical N-P-K analysis of 5-2-1. Ideal for acid-loving plants such as azaleas, rhododendrons, blueberries, strawberries, potatoes, and roses, it also helps lower soil pH, improving nutrient uptake in alkaline soils.\u003c\/p\u003e\n\u003cp\u003eA byproduct of the cotton industry, cottonseed meal is made from the remnants of cottonseed after oil extraction. It’s rich in organic matter, which enhances soil structure, water retention, and supports the growth of beneficial microbes critical for long-term soil health.\u003c\/p\u003e\n\u003ch3\u003eAdditional Benefits:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeed Suppression:\u003c\/strong\u003e When used as mulch or incorporated into soil, it may inhibit weed growth by depriving seeds of light and nutrients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompost Booster:\u003c\/strong\u003e Add it to compost piles to enrich nutrient content and accelerate microbial activity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUsage:\u003c\/h3\u003e\n\u003cp\u003eApply at 10 lbs per 100 square feet or 1500–3000 lbs per acre. Cottonseed meal is available in 50 lbs bags. Suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVegetable gardens (e.g., tomatoes, peppers, beans)\u003c\/li\u003e\n\u003cli\u003eFlower beds and ornamentals\u003c\/li\u003e\n\u003cli\u003eTrees, shrubs, and acid-loving plants\u003c\/li\u003e\n\u003cli\u003eCompost piles and soil conditioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e While we continue to search for an organic source, our cottonseed meal is currently from conventional cottonseed, which may include GMO material.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBulk Orders: \u003c\/strong\u003eFor pallet pricing, please inquire for current rates.\u003c\/p\u003e\n\u003cp\u003eCottonseed meal is a versatile and effective amendment for building healthy soil, supporting robust plant growth, and maintaining a more productive, balanced garden ecosystem. \u003c\/p\u003e\n\u003cp\u003eIf you’re interested in other powdered fertilizers, you can explore our \u003ca href=\"https:\/\/www.groworganic.mom\/collections\/powdered-fertilizer\"\u003efull collection here\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":21543494451313,"sku":"F790","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/f790-a_1.png?v=1776882503"},{"product_id":"dte-acid-mix-436-1-lb-box","title":"Acid Mix 4-3-6 (1 lb Box)","description":"\u003ch2\u003e1 lb Acid Mix for Containers and Small Plantings\u003c\/h2\u003e\n\u003cp\u003eDown To Earth Acid Mix 4-3-6 in the 1 lb box is sized for container blueberries, a few young berry plants, or a small group of acid-loving ornamentals. It is a convenient choice when you want to try the formulation without storing a larger package.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the 1 lb Box?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEasy-to-handle size for patios, balconies, raised beds, and small gardens.\u003c\/li\u003e\n\u003cli\u003eSuitable for blueberries, raspberries, azaleas, rhododendrons, hydrangeas, and evergreens.\u003c\/li\u003e\n\u003cli\u003eGranular fertilizer can be mixed into planting soil or applied around established plants.\u003c\/li\u003e\n\u003cli\u003eProvides a 4-3-6 analysis plus calcium, magnesium, sulfur, and humic acids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUsing This Size\u003c\/h3\u003e\n\u003cp\u003eApply according to the current package label, work it lightly into the soil where appropriate, and water thoroughly. Soil conditions and plant size affect fertilizer needs, so test the soil when possible and avoid assuming that every acid-loving plant needs additional acidification.\u003c\/p\u003e\n\u003ch3\u003eCompare Acid Mix Sizes\u003c\/h3\u003e\n\u003cp\u003eIf you are feeding several established plants or expect multiple seasonal applications, the \u003ca href=\"\/products\/acid-mix-4-3-6-5-lb-box\"\u003e5 lb Acid Mix box\u003c\/a\u003e may be the better value. That page is our primary Acid Mix guide and includes the complete guaranteed analysis, ingredients, and detailed application guidance. A \u003ca href=\"\/products\/acid-mix-25-lb-bag\"\u003e25 lb bag\u003c\/a\u003e is also available for larger plantings.\u003c\/p\u003e","brand":"Down to Earth","offers":[{"title":"Default Title","offer_id":21548712132721,"sku":"F090","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/acid-mix-4-3-6-1-lb-box.png?v=1776464895"},{"product_id":"monterey-dr-iron-7-lb","title":"Monterey Dr. Iron (7 lb)","description":"\u003ch2\u003eMonterey Dr. Iron Granular Supplement\u003c\/h2\u003e\u003cp\u003eTo use on lawns, flowers, vegetables, trees and shrubs, to correct for iron deficiency. Won't stain concrete or burn foliage Controlled release for season-long feeding Derived from elemental sulfur and iron oxide, contains 22% iron and 55% sulfur Note: this product will lower the soil pH ⚠ Warning: This product or its packaging has a CA Prop 65 Warning Monterey Dr. Iron 7 lb is a specialized iron supplement designed to address iron deficiency in plants. Iron deficiency is a common issue in many gardens and landscapes, leading to yellowing leaves and stunted growth. This product aims to provide an effective and eco-friendly solution to this problem, ensuring healthy and vibrant plants. Key Features: Iron Supplement: Monterey Dr. Iron contains 22% iron in the form of iron sulfate monohydrate. This essential nutrient is vital for chlorophyll production, which is crucial for photosynthesis and overall plant health. Regular application of this product can help prevent and alleviate iron deficiency symptoms in plants.\u003c\/p\u003e\u003cp\u003eUse according to the current package directions and within a soil-test-based fertility plan. Measure carefully, apply evenly, water as directed, and store the closed package in a cool, dry location.\u003c\/p\u003e\u003cp\u003eCompare additional \u003ca href=\"\/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","brand":"Monterey","offers":[{"title":"Default Title","offer_id":21549149978737,"sku":"F1240","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/monterey-dr-iron-7-lb.png?v=1776709701"},{"product_id":"espoma-organic-holly-tone","title":"Espoma Organic Holly-Tone (4 lb)","description":"\u003cp\u003eEspoma Organic Holly-Tone (4 lbs) is a premium, natural fertilizer meticulously crafted to meet the needs of acid-loving plants. Perfect for evergreens, azaleas, rhododendrons, and other acid-loving species, Holly-Tone 4-3-4 plant food is enriched with essential nutrients to promote vibrant foliage, strong root development, and long-lasting blooms.\u003c\/p\u003e\n\u003cp\u003eFormulated with organic ingredients, Espoma Holly-Tone offers a gentle, slow-release feeding process that nourishes plants without the risk of over-fertilization. Its balanced composition makes it an ideal choice for gardeners looking to maintain lush, thriving landscapes. As a natural fertilizer for acid-loving plants, it supports healthy soil microbiomes, ensuring your garden’s ecosystem stays robust and balanced.\u003c\/p\u003e\n\u003cp\u003eThis organic evergreen plant food is specifically designed to cater to the unique requirements of acid-loving varieties, such as azaleas and rhododendrons. Its comprehensive nutrient profile enhances their ability to resist stressors while delivering lush, green foliage and abundant blooms. Espoma 4 lb Holly-Tone is also effective as an evergreen and azalea fertilizer, making it a versatile addition to your gardening routine.\u003c\/p\u003e\n\u003cp\u003eWhether you’re nurturing a small garden or a sprawling yard, Espoma Organic Holly-Tone provides the consistent, reliable nutrition your plants need to flourish. Trust in Espoma organic plant food for beautiful, healthy acid-loving plants season after season.\u003c\/p\u003e\n\u003cp\u003eLooking for a fertilizer specifically formulated for azaleas and rhododendrons? Check out \u003ca href=\"https:\/\/www.groworganic.mom\/products\/espoma-organic-azalea-tone-4-3-4-4-lb-bag\" data-start=\"90\" data-end=\"204\" rel=\"noopener noreferrer\"\u003eEspoma Organic Azalea-Tone 4-3-4\u003c\/a\u003e, designed to meet the unique nutritional needs of acid-loving plants.\u003c\/p\u003e\u003cp\u003eCompare this product with additional \u003ca href=\"\/collections\/all-purpose-fertilizers\"\u003eall-purpose fertilizers\u003c\/a\u003e selected for garden and farm fertility programs.\u003c\/p\u003e","brand":"Espoma","offers":[{"title":"Default Title","offer_id":40065143144561,"sku":"F813","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/espoma-organic-holly-tone-with-garden-background.png?v=1771576427"},{"product_id":"espoma-organic-tomato-tone-3-4-6-8lbs","title":"Espoma Organic Tomato-Tone 3-4-6 (8 lb)","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eEspoma Organic Tomato-Tone 3-4-6 (8 lbs)\u003c\/strong\u003e is a specialized organic fertilizer formulated to meet the unique nutritional needs of tomatoes and other fruiting crops. This blend features a balanced 3-4-6 NPK ratio and includes calcium—an essential nutrient that helps prevent blossom end rot. For additional calcium-based solutions, see our \u003ca href=\"https:\/\/www.groworganic.mom\/collections\/calcium-fertilizer\" target=\"_blank\"\u003eCalcium Fertilizer Collection\u003c\/a\u003e. Designed for continuous feeding throughout the growing season, Tomato-Tone promotes robust root development, steady growth, and a larger, more flavorful harvest.\u003c\/p\u003e\n\u003cp\u003eEnhanced with Espoma’s proprietary Bio-tone® blend of beneficial microbes, this 8 lb tomato fertilizer encourages microbial activity in the soil, improving nutrient uptake and plant resilience. The slow-release formulation ensures that plants receive consistent nourishment without the risk of overfeeding or burning. It’s an ideal option for both in-ground and container-grown tomatoes, as well as peppers and eggplants.\u003c\/p\u003e\n\u003cp\u003eThis fertilizer is made from all-natural, organic ingredients and is OMRI listed, making it suitable for certified organic gardens. It's safe to use around children and pets and integrates easily into your planting routine—apply at the time of transplanting, then side-dress as the season progresses to support blooming and fruiting. Whether you're growing heirloom slicers, cherry tomatoes, or canning varieties, this tomato fertilizer delivers dependable nutrition with a focus on healthy fruit production and long-term soil health.\u003c\/p\u003e\n\u003cp\u003eWant to explore more? View our complete \u003ca href=\"https:\/\/www.groworganic.mom\/collections\/all-espoma-products\" target=\"_blank\"\u003eEspoma Product Collection\u003c\/a\u003e or shop our full range of \u003ca href=\"https:\/\/www.groworganic.mom\/collections\/soil-amendments\" target=\"_blank\"\u003eOrganic Fertilizers and Amendments\u003c\/a\u003e for tomatoes and beyond.\u003c\/p\u003e\n\u003c\/div\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":"Espoma","offers":[{"title":"Default Title","offer_id":40194208170097,"sku":"F811","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/F801_ft.jpg?v=1766095908"},{"product_id":"cottonseed-meal-6-2-1-15-lb-bag","title":"Cottonseed Meal 6-2-1 (15 lb bag)","description":"\u003ch2\u003eCottonseed Meal 6-2-1 (15 lb bag)\u003c\/h2\u003e\n\u003cp\u003eE. B. Stone Cottonseed Meal is a dry, plant-based fertilizer with a guaranteed analysis of 6-2-1. Its nitrogen supports leafy and vegetative growth, while the phosphorus and potassium contribute to a broader fertility program.\u003c\/p\u003e\n\u003cp\u003eCottonseed meal releases nutrients gradually as it breaks down in the soil. It can also have an acidifying effect, making it a common choice for plants that perform well in moderately acidic soil, including blueberries, azaleas, camellias, hydrangeas, and rhododendrons. Results and release rate depend on soil biology, moisture, temperature, and other growing conditions.\u003c\/p\u003e\n\u003cp\u003eApply according to the current package directions and a soil-test-based fertility plan. Account for compost and other fertilizers already applied, measure rates carefully, water as directed, and store the closed package in a cool, dry location.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.groworganic.mom\/cdn\/shop\/files\/f332-m.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet\u003c\/a\u003e\u003c\/p\u003e\n\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":"EB Stone","offers":[{"title":"Default Title","offer_id":40706214101105,"sku":"F332","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/F332front.jpg?v=1747080504"},{"product_id":"organic-ph-down-pint","title":"SaferGro pH Down","description":"\u003cp\u003e\u003cstrong\u003eSaferGro pH Down is a concentrated liquid pH adjuster for acidifying irrigation water, nutrient solutions, and hydroponic reservoirs.\u003c\/strong\u003e Its organic-acid formula lowers water pH and can help keep calcium and magnesium from precipitating out of solution. It can also serve as a compatibility agent and help limit mineral scale in tanks and irrigation equipment.\u003c\/p\u003e\n\u003ch3\u003eFeatures and Uses\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible sizing:\u003c\/strong\u003e Choose a Pint, Quart, or 1 Gallon container.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcentrated liquid:\u003c\/strong\u003e Contains 40% organic acid and mixes readily with water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple applications:\u003c\/strong\u003e Use as a water conditioner, soil conditioner, acidifier, or complexing agent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrganic production:\u003c\/strong\u003e OMRI Listed for use in organic production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow to Use SaferGro pH Down\u003c\/h3\u003e\n\u003cp\u003eMeasure the starting pH before treatment. Add pH Down according to the manufacturer’s rate table, mix thoroughly, and test again before making another adjustment. Required amounts change with the starting pH and alkalinity of the source water, so avoid relying on a single universal dose. Follow the current label for rates, handling, storage, and disposal.\u003c\/p\u003e\n\u003cp\u003eAvoid swallowing the concentrate or allowing it to contact eyes or skin. Store tightly closed in a cool, dry, well-ventilated place away from direct sunlight, heat, or freezing.\u003c\/p\u003e\n\u003cp\u003eExplore our \u003ca href=\"https:\/\/www.groworganic.mom\/collections\/correct-high-ph\"\u003eproducts for lowering high pH\u003c\/a\u003e or read \u003ca href=\"https:\/\/www.groworganic.mom\/blogs\/articles\/understanding-soil-ph\"\u003eUnderstanding Soil pH\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eReview the manufacturer’s current \u003ca href=\"https:\/\/safergro.com\/cdn\/shop\/files\/SG_Ph_Down_Back.png?v=1750200799\u0026amp;width=1780\" target=\"_blank\" rel=\"noopener\"\u003eProduct Label\u003c\/a\u003e and \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0278\/6810\/2729\/files\/SG_pH_Down.pdf?v=1747412069\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet\u003c\/a\u003e before use.\u003c\/p\u003e","brand":"SaferGro","offers":[{"title":"Pint","offer_id":43861811232881,"sku":"F326","price":9.99,"currency_code":"USD","in_stock":true},{"title":"Quart","offer_id":44054155919473,"sku":"F327","price":13.99,"currency_code":"USD","in_stock":false},{"title":"1 Gallon","offer_id":44054155952241,"sku":"F328","price":35.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/files\/safergro-ph-down-pint_6013b16a-e67b-4dbe-8779-974f06e21229.jpg?v=1787098891"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/1391\/9089\/collections\/fertilizer-highpH-thumbnail_724c4363-03af-4a3b-b189-549f3aee3c68.jpg?v=1786831152","url":"https:\/\/www.groworganic.mom\/collections\/correct-high-ph.oembed","provider":"Grow Organic","version":"1.0","type":"link"}