Top Plants For Sonoma County
Cut back in winter to renew - plants generally need replacing in 4-6 years.
Prized for fragrance, white or pinkish lilac to purple flower spikes appear in spring or summer. Some varieties repeat bloom in late summer or fall. After flowering, prune single stems or up to one-half of the entire foliage mound. To rejuvenate leggy shrubs, in late fall prune harder into woody growth but only where small green buds are showing. Give excellent drainage, air circulation, and little water.