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reusing pumice


I tried to start some cuttings in pumice and some made it while others
didn't.  When I transplant the ones that made it (and toss the ones that
didn't), can I reuse the pumice?  Must I sterilize it first?  If so, how?

Thanks!

Nan

Nan Sterman, Master Composter in residency
San Diego County, California
Sunset zone 24, USDA zone 10b or 11




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