Sand for potting mixes

ds429@frontier.com ds429@frontier.com
Sat, 15 Nov 2014 13:39:16 PST
I have heard for years that one needs to use “silica sand” for bulb potting mixes. I wonder how “silica sand” differs from other sand. I try to find very coarse sand because it is not as likely to compact. The best stuff I found was from a stream bed. But was it “silica sand?” Isn’t sand generally a silicate mineral anyway? 


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