Thoughts on re-using bark and sphagnum ?
Has anyone tried to re-use bark and sphagnum ?
Some orchids ( like catasetums ) are potted up annually. I spread any "old" bark and moss that I have after repotting, on the garden as a top-dressing, but wondered if I washed it/left it in the rain to leach out salts etc, if it would be good for re-use ? Especially with longer-lasting bark like orchiata ? I have noticed too that a lot of the regular bark from last year that I spread on my veggie beds still looks OK.....
I might try it this year, wouldn't do it more than 2x but in theory you should be able to do so until you see visible deterioration in the bark. If sphagnum can spend years in the "wild", then surely the same principle would apply ?
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