Wish I saw this sooner! Great tips!

4. Add Slow-Release Fertilizer
Incorporate a slow-release fertilizer to give your plants a continuous supply of nutrients. Follow the product instructions for correct application rates.
5. Improve Soil Structure
To improve soil structure and drainage, add ingredients like perlite, vermiculite, or coarse sand. Mix these additives thoroughly into the soil to ensure even distribution.
6. Adjust pH Levels
Using a soil test kit, check the pH level of your mix. If necessary, add lime to raise the pH or sulfur to lower it, aiming for the optimal range suited to the plants you intend to grow.
7. Store Properly Until Use
Once revitalized, store your renewed potting soil in a cool, dry place until you’re ready to use it. Proper storage prevents the growth of mold and preserves the soil’s quality.
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By following these steps, you’ll not only reduce waste but also create a more sustainable gardening practice. With just a bit of effort, old potting soil can be transformed to support healthy, thriving plants season after season. Happy gardening!