Frank wrote:
50 / 50 vermiculite / perlite mix, no soil, no peat, no compost.
Excellent water handling characteristics, pH would remain dead
stable. No pests, no disease. Feed with organic tea to replace
the missing OM portion. Would this work as well as a good
standard potting mix such as Pro Mix?

IMO that is not a good mix. I have tried mixes with 33 percent perlite
and even with a lot of compose tea they did not work well. Also, too
much perlite (over 25 percent IMO) tends to become "messy".

There are many good commercial mixes (without soil) that work much
better. Also, it might help if you tell us what you want to grow. Some
mixes work better than others depending on the plant.
--
Bill R. (Ohio Valley, U.S.A)



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