Knowledgebase
Mixing Old and New Soil #864124
Asked April 11, 2024, 2:12 PM EDT
Prince George's County Maryland
Expert Response
If you haven't had any root diseases then it is fine to re-use some old potting media. It does break down over time, so mixing about half of the content with new mix is best.
If you did have a disease you should compost the old and use all new in the pots.
Emily