The woman who owned the house before us lived here 50 years and figured out what to plant and what not to plant and where. So there's lots of hosta, lots of euonnymous, bell flowers galore, phlox everywhere and there were lots of non-blooming iris that we took out. There are also several lilacs, more than 50 feet away from either tree and a few flowering trees including a Rose of Sharon. The backyard garden is famous for eating perennials and vegetable plants. I planted a bleeding heart beside one of the trees last summer. It came back this spring but, while still very pretty, its painfully tiny, I'm a little embarrassed by it...lol... I guess its a fighter or it wouldn't have come back, so I'd better move it, maybe to the front yard.