Read more: 15 Best Purple Plants For Your Flower Garden Common lilac (Syringa vulgaris) is a tree that blooms during the late spring and early summer with delicate, yet fragrant violet-blue flowers.

* What it is: Virginia bluebells are a Pennsylvania-native perennial that typically grow in woodland colonies and produce ...

The Texans have their blue bells, the Scots have their blue bonnets, and right here in Auburn we have our bachelor buttons, ...