Blueberries thrive in acidic soils and respond well to ammonium sulfate fertilizers that deliver nitrogen and sulfur while helping lower soil pH. This article highlights five well-suited ammonium sulfate products, explaining how each supports deep green foliage, robust growth, and productive blueberry bushes. A concise buying guide follows to help you compare options and choose the right blend for your landscape or garden beds.
| Product | Brand | Notes |
|---|---|---|
| Ammonium Sulfate 21-0-0 Fertilizer with Nitrogen and Sulfur | PLANTCO | Quick-acting nitrogen; pH neutralizing effect; ideal for blueberries and acid-loving plants |
| Supply Solutions 21-0-0-24S Ammonium Sulfate (50 lb) | Supply Solutions | Deep green growth; soil pH regulation; designed for acid-loving species |
| Ammonium Sulfate 21-0-0 Fertilizer, High Nitrogen | The Grow Co | 21% nitrogen with 24% sulfur; promotes green color and acid-friendly soil |
| Ammonium Sulfate Fertilizer AMS 21-0-0 +24% Sulfur | Cz Garden Supply | Premium quality; resealable 4 lb bag; strong nitrogen and sulfur content |
| Supply Solutions 21-0-0-24S Ammonium Sulfate (10 lb) | Supply Solutions | Deep green growth; pH regulation; compact option for small gardens |
Ammonium Sulfate 21-0-0 Fertilizer By PLANTCO
This product provides quick-acting nitrogen and sulfur to support vigorous growth. It also helps neutralize soil acidity, creating a more favorable environment for blueberries and other acid-loving plants. The formulation aims to deliver deep green foliage and healthier overall plant vigor.
Supply Solutions 21-0-0-24S Ammonium Sulfate
Designed for deep green growth and vibrant blooms, this sulfur-containing ammonium sulfate blend targets acid-loving plant species, including blueberry bushes. It also aids soil pH regulation by releasing ammonium ions which help lower pH levels in alkaline soils, improving nutrient availability.
Ammonium Sulfate 21-0-0 Fertilizer by The Grow Co
This product pairs a 21-0-0 ratio with 24% sulfur to promote greener foliage and healthier soil structure. It is positioned as an effective soil acidifier, particularly beneficial for alkaline soils where blueberries benefit from enhanced nutrient availability.
Ammonium Sulfate Fertilizer AMS 21-0-0 +24% Sulfur
Made in the USA, this fertilizer supplies 21% nitrogen and 24% sulfur to promote lush growth. Its high-quality ingredients support indoor and outdoor plants, including blueberries, with emphasis on strong green growth and improved soil health. The packaging is resealable for convenient use and storage.
Supply Solutions 21-0-0-24S (10 Lb)
Compact 10-pound packaging suits smaller blueberry beds and container plantings. The product emphasizes deep green growth and compatible pH regulation for acid-loving species, making it a practical choice for homeowners with limited space.
Buying Guide: Key Purchase Considerations for Ammonium Sulfate Fertilizers
- Nutrient ratio: Look for products with 21-0-0 (21% nitrogen, 0% phosphorus, 0% potassium) and sulfur content around 24% to support acid-loving plants and soil health.
- Soil pH impact: Ammonium-based formulations tend to lower soil pH, which benefits blueberries but may affect plants that prefer neutral or alkaline conditions. Test soil pH before applying and adjust frequency accordingly.
- Application rate and timing: Follow label directions for application frequency and quantity. Quick-acting nitrogen can spur fast growth, but excessive application may risk nutrient burn or imbalanced soil chemistry.
- Form factor and packaging: Choose a size that suits your garden scale and storage preferences. Re-sealable bags help maintain product quality for long-term use.
- Compatibility with crops: While designed for acid-loving plants, verify that the product suits your entire planting palette to prevent unintended pH shifts in mixed beds.
- Environmental and safety considerations: Select products from reputable brands with clear usage instructions. Proper disposal of bags and minimal impact on surrounding flora and fauna is important.
- Cost and availability: Compare price per pound and the convenience of larger or smaller bags. Availability may influence long-term soil management plans for blueberry patches.
- Alternative uses: Some blends also support lawns, azaleas, camellias, and rhododendrons. If you have a mixed landscape, investigate compatibility across plant types.
- Organic and synthetic options: Determine whether you prefer synthetic ammonium sulfate or blends marketed as specialty fertilizers, and review organic certification if relevant to your goals.
In summary, ammonium sulfate fertilizers with a 21-0-0 ratio and added sulfur can effectively support blueberry growth by promoting deeper green foliage and helping to lower soil pH in alkaline conditions. When selecting a product, consider packaging size, soil test results, and the specific needs of your blueberry varieties to optimize yield and plant health.