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6 Ways To Make Your Soil More Acidic For A Healthy Garden (And 5 To Avoid)
Use Iron Sulfate To Lower Soil pH Levels Iron or ferrous sulfate (FeSO4) works similarly to aluminum sulfate, except it gives the soil a little iron, which is an essential plant nutrient.
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Why This Aluminum Foil Color-Changing Hydrangea Trick Is A Total Bust
Aluminum and sulfate work together to lower the soil pH ... You can do this by using a soil pH testing kit. Regular ...