Acidic Soil

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

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, coir, sphagnum peat moss or nitrogen-based acidic fertilizer to the soil. 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.