Contaminated potting mixture

Asked January 18, 2019, 12:21 PM EST

I had a major infestation of mites in my planter petunias last summer. Can I re-use the soil/planters this summer or must it be discarded? Thanks

Washington County Oregon potting soil

1 Response

Thank you for your question. It is interesting that writers from different Extension services give different advice on re-use of potting soils. But they all agree that if you have had any type of infestation of insects, or a fungal or bacterial infection, you should not re-use the soil, and need to take care of cleaning the pots, as well. Here is a comprehensive Extension article on container gardening generally, with that advice: https://extension.colostate.edu/topic-areas/yard-garden/container-gardens-7-238/

Good luck!