Seven-sons is a tree that blooms in September. Photo courtesy Draves Arboretum by Connie Oswald Stofko When we think of plants for our landscape, we often forget about trees. With Arbor Day coming up on Friday, April 26, we turn our attention to these huge plants that we sometimes don’t notice. How to choose a tree Look at the unusual shape of the foliate on the cutleaf daimyo oak. The leaves are deeply cut into narrow lobes, giving them a…