Noun
A plant which has been planted in a container, often a houseplant.
(slang) A shill taking part in an auction.
Source: en.wiktionary.orgI spend a great deal of time with the President. We have a very close, personal, loyal relationship. I'm not, as they say, a potted plant in these meetings. Dan Quayle
Man takes root at his feet, and at best, he is no more than a potted plant in his house or carriage till he has established communication with the soil by the loving and magnetic touch of his soles to it. John Burroughs
He considers me also a little fragile because artistic. I need to be cared for, like a potted plant. Margaret Atwood