Hoary Vervain (Verbena stricta)
Bloom Colour: Purple
Height: 3-6 feet
Soil: Dry, sandy soils
Hardiness Zone: 4-7 (click here to find your plant hardiness zone)
Hoary Vervain attracts: Butterflies and is an important food source for native bees.
And is a host plant for: Common Buckeye butterfly.