Lilac
Zone: 3 to 7
Full Sun
Bloom Time: Spring
Height: 4′ to 12′
Lilacs are another traditional plant that everyone associates with its beautiful smell.
Their beautiful fragrant flowers grow on old wood so if you are going to prune them, it needs to be done right after they have finished blooming…otherwise you are probably cutting off next year’s blooms.
By Jjron [GFDL or CC-BY-SA-3.0], from Wikimedia Commons
Another benefit of lilacs is that they are a favorite plant of hummingbirds and butterflies.