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Suggestions on source for trays and pots
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June 10, 2017
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Cole_Robbie
Tomatovillian™
Join Date: Jun 2012
Location: Illinois, zone 6
Posts: 8,407
From what I read, you can use styrofoam, although perlite and vermiculite are superior at retaining air and water in the media. You might try looking for other alternatives, like a very coarse sand, or a small-sized, porous gravel.
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