Prune summer-blooming shrubs, such as abelia and butterfly bush, in early spring. Buds form on the new wood that emerges the same year. Later, cutting spent flowers on your butterfly bush will produce new flowers.
Mexican bush sage - Perennials That Love the Sun - Distinguished by its velvety purple and white spires in late summer and fall, this drought-tolerant shrubby perennial is loved by butterflies and hummingbirds. Mexican bush sage needs well-drained soil.