My husband and I recently planted two full Weigela "wine and roses" in our front yard. We had to dig up large stumps beforehand. Both plants get equal water and both are in full sun. However, one might get a little more shade than the other but this one is extremely healthy. My question is when I come home I have noticed the one in the full sun looks whithered and the leaves around the base of the tree are beginning to die. I notice that when I water this one there is a puddle of water sitting around the base and I just don't know how to strengthen this plant. Please help.