Germander sage is a mounding perennial native to the Sierra Madre Oriental mountains of Mexico, and growing about 18 inches tall and 24 inches wide. It has heavily textured grey green foliage and truly blue flowers that rise on spires in early summer and again, to a lesser extent, in the fall.
Grow in well drained, loamy soils in full sun. It is listed as being hardy to USDA Zone 7, so plant it where it will benefit from reflective heat in the winter. Though it may not be suited to the bench areas, it would be worth the gamble in a sunny valley garden. Shear in late winter to early spring. Drought tolerant once established.