of a potted plant
: having roots formed into a dense, tangled mass that encircles the inside of a container and that allows little or no space for further growth : root-bound
Examine the root system of container plants carefully to make certain that the plant has not become pot-bound. If it has, the roots will have circled around the inside of the pot and will be a solid, entangled mass.—Robert Emmerich et al. Grow several bulbs in one pot so they remain potbound.—Joan Lee Faust
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