My friend came over with her dog and I allowed her dog to go into my yard with my dog. Problem is I didn't know that her dog would target 2 of my plants - one an azalea and the other a beautiful white rhododendron. The azalea still has some foliage on it so I'm hoping it will recover, but the rhododendron just has 2 little nubs sticking up out of the ground. Is this plant a gonner or will the root system send up new growth? Anyone with info please advise. Thanks.