Perovskia atriplicifolia 'Silvery Blue'
This compact perovskia has lavender blue flowers that last from summer into fall. The silvery-blue foliage does not flop and maintains its form.
Exposure: Full Sun
Size: 20" tall x 18" wide
Bloom: Summer - Fall
Hardiness: Zone 4
Characteristics: Deer Resistant, Butterfly/Hummingbird Attracting