What: Salvia “Azure Snow” brings blue vertical interest to the garden. Its blooms are a blend of violet and blue spires that attract both butterflies and hummingbirds. This perennial salvia comes into bloom in late spring and, if deadheaded, will reward gardeners with blooms through autumn. Another benefit of this salvia, is that the foliage is fragrant. Salvia “Azure Snow” would create quite a stir if planted in drifts, creating a sea of blue.