Most plants thrive and grow in soil in relatively neutral soil, but some plants actually prefer acidic soil: a pH below 7.0.

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Example of plants that thrive in acidic soil:

  • Azalea

  • Rhododendrons

  • Hydrangeas

  • Blueberries

  • Cucumbers

  • Broccoli

  • Squash

You can buy pre-mixed acidic soil, but you can also acidify the soil you have. If you need to make your soil more acidic you can, for example add:

  • Powdered sulfur

  • Aluminum sulfate

  • Coffee grounds

  • Sphagnum peat moss

  • Nitrogen-based acidic fertilizer

To know how much you need to add, you’ll need to first pH test your soil. By testing the soil annually, you’ll also have a good chance to make adjustments before the soil’s pH gets too high.