BUT... where does this reaction stem from? In nature, I am not aware of any situation where orchids are subjected to such conditions. Even the Spiranthes, a terrestial which grows in muck soils, needs air "pockets" in the soil to survive. Maybe the best clue is the natural size (girth) of the root? And natural rooting depth?
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Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)
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