As you can see here, the butterfly bush is quite pretty with the added butterflies of every color, it would really stand out in your yard.
The Leland Cypress would make an excellent windbreak if you live in a windy area.
Forsythia is a really pretty bush but can become quite unruly if not pruned, to prune it, get some good advice on how to do so before you start.
Nellie Stevens Holly is great for privacy between your property and your neighbors and would also act as a wind break.