SOIL SULFUR 3.25lb

Is your soil too alkaline (high pH)? Soil Sulfur is the most effective and long-lasting way to lower the pH and make essential micronutrients (like Iron) available to your plants. It creates the acidic soil environment required by many mountain plants and is crucial for fixing persistent yellowing (chlorosis) in alkaline soils.

• Best For:
  • Acid-Loving Plants: Blueberries, Azaleas, Rhododendrons, Gardenias, Pines, Pin Oaks, and Blue Spruce.
  • Alkaline Soils: Areas where the pH is above $7.0$ and plants struggle with nutrient uptake (especially iron).
  • Changing Hydrangea Color: Helping to turn pink Hydrangeas BLUE (when used with Aluminum Sulfate).
• Key Actionable Steps:
  • How to Apply: Apply the granular sulfur evenly around the drip line of the plant (avoid piling it against the trunk). Mix it lightly into the top inch of soil.
  • When to Use: Apply in the fall or early spring. Sulfur works slowly, requiring soil microbes and moisture to convert it into the active acid form, so plan ahead.
  • Rate of Application: The amount needed depends on your current pH and your desired pH. Use a soil test for accuracy; as a general guide, use 1 lb. per 100 sq. ft. for a minor adjustment. Do not over-apply.
  • Pro Tip: Always water thoroughly after application. Because sulfur works slowly, it should be applied months before planting or during the dormant season for established plants.