I live in a two story townhouse. I have a ground floor terrace with two sides exposed and is sheltered with a second floor balcony. The front is the larger side of a rectangle and the smaller side is centered with a 6 stair walkup (terrace is elevated about 5'). Some other terraces are surrounded with tall, thin shrubs like arbor vitae which I really don't want. I'd like something really nice that grows about 10' to 15' tall. I like the idea of the lilac tree which seems like it stays low enough and spreads out (works for the front). I also like the burning bush but there's conflicting info as to how tall this bush grows. If it doesn't grow tall enough I may choose these to directly cover the front terrace wall behind a suggested tree. But this is all I have so far. Any suggestions with photos would be really helpful since I know so little about landscaping. I'll choose best answer before time is up. Thanks for helping me out with this ;)