Flowers initiate under short nights. This variety is lighter in color but more reliably perennial and more compact than O. berlandierii. Spreads quickly by underground stolons, becoming almost invasive sometimes. Sun to part shade, little to no summer watering, frost hardy to around 15-20 F. Cut back to ground in winter or early spring. During the growing season, plants cut back to bare, brown stems will often fail to resprout.
Foliage is densely tomentose beneath.
Sun to part sun, little to no watering when established, good to average drainage. Best cut back after bloom to keep it shapely and compact. Hardy to around 20 F. Southeastern Australia, Tasmania. Clouds of deep sky blue flowers cover the plant in spring, with scattered flowers in summer and fall. Part shade to shade, average to little watering, frost hardy.