The potting mix is never removed from the roots by Bianchi a leading cymbidium grower, who starts with a single bulb in a five-inch pot in a bark and peat mixture and continues on up to a ten-inch pot or tub or laundry basket slip-potting-on for up to ten years in the same mix, OA81-153
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Potting On
Potting On
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POTTING ON: Never Do it
Any plant more than five inches across will develop a ball of rotten roots (especially cymbidiums) in the centre; the practice frequently causes defoliation of the central pseudobulbs. NZ86-174