VOLCANIC ROCK: For Paphiopedilum Potting Mixes

Culture Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

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It does two things, it holds moisture, and after the mixes break down it keeps the mix open and apart. A77-710; used for all types of plants; up to 75% of the mix can be volcanic rock; a professional grower's medium for paphiopedilums with volcanic rock given. OA76-10+
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