It's the final part of my run-through of the various things you can use to make up your houseplant potting mixes, including perlite and vermiculite; plus I answer a question about a mixed planter.

For the full show notes, visit https://www.janeperrone.com/on-the-ledge/2020/10/2/episode-158-an-a-to-z-of-potting-mix-ingredients-part-three

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