Answer: The answer really depends on how alkaline your soil is now and what specific plants you want to grow. Sulfur can be added to the soil; it takes 2-3 weeks to change the pH. The amount you add will depend upon the current pH and your pH goal. You can amend the soil with peat moss or composted oak leaves prior to planting acid-loving plants. Or, if you're gardening in containers you can simply and a teaspoon or two of vinegar to the water you use to water your plants. If you provide more specifics, we can provide even more direction in acidifying your soil.
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