Lillis only flower for one day. They look ugly when dead you can use your finger nail to pop them off. Trim your trees often. Pull your dead leaves. Heat is not good for your plants. When your cutting you crab trees back go down a few branches of leaves before you cut. Yellow breasted sap suckers are not good for your trees. They also cut in a straight line. Crab apple trees have barks that naturally peel off, there is nothing wrong with that tree. Just watch out for the bugs because they can kill your trees very fast.