Wettable Sulphur

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This water soluble powder can be used any time to lower soil pH.  Ideal soil pH for shade-loving mosses is 4.5 - 5.5.  Anything under 6.0 should be fine.

To lower soil pH by application directly to bare soil:

The 30 lb bag of wettable sulphur can be used one of two ways: 1) Either dry in a drop spreader, or 2) "Wet" - diluted in water and sprayed from a pump sprayer.

  1. For use DRY in a drop spreader use 3 lbs of sulphur per 100 square feet of area. This will result in a lowering in pH of 1.0, or for example, from 7.0 to 6.0.
  2. For use WET in a pump sprayer use 1 lb. of sulphur to 2 gallons of water. Mix well in a 5 gallon bucket before pouring mixture into your pump sprayer. Apply all of the mixture over a 200 square foot area. Soak the bare soil thoroughly and use all the mixture to lower the pH 1.0 or (from 7.0 - 6.0 for example).

For use in helping to minimize grass, weeds, and or fungus in areas with pre-existing moss:

Always apply WET in a pump sprayer for this application. Dilute 1/4 cup of sulphur in 5 gallons of water. Mix well and pour into pump sprayer. This can be applied 2-3 times per year. If you are not seeing results within 2 months, up the concentration of sulphur until you see dieback of the grasses and weeds.

HINTS AND TIPS:

Avoid windy days for application. Best time of day for application is in early evening when temperatures are below 80 degrees.

When diluting the powder in water mix thoroughly in a 5 gallon bucket.

Always clean out pump sprayer with clean water after use.


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