Top Plants For Sonoma County
Cut back in winter to renew.
A relative of catnip and often favored by felines, this sprawling perennial blooms repeatedly from late spring through fall in small, lilac blue, two-lipped flowers. To maintain neat appearance, deadhead individual stems or shear plants back by as much as half after each round of bloom; shear to the ground in winter. Divide when clumps become crowded.