If I'd bought a plant and it failed, I'd have to shrug and say "whatever". But plants that have been inherited by the plot have a degree of entitlement. Anyway, the two rhubarb plants, growing in adverse circumstances in containers when I took over last year. First I planted them early spring by the pond. They hated it there and put out no noticeable new growth. So I transplanted both of them to the temporary odds-and-sods bed. One of them, at least, seems to be appreciating the move already, putting out new growth.