I agree with Robyn that they are quite likely to regrow -- but they can then be trimmed off (again). I always cut the branches off to about 1-1/2 feet from the soil line (so I don't have leaves dragging on the ground and getting more diseases than they do anyway), and many of them send up shoots from the base. (Although my plants were planted fairly deeply, so maybe they won't sprout if they've never been transplanted.)
