Penstemon palmeri, the Palmer's penstemon, is a perennial penstemon notable for its showy, rounded flowers, and for being one of the few scented penstemons. Penstemon palmeri is native to desert mountains from the eastern Mojave Desert in California, is a drought tolerant perennial plant, preferring well draining drier soils. It grows from 3,500–7,500 ft.
USDA Zones 8-10
Stan Shebs [GFDL (http://www.gnu.org/copyleft/fdl.html), CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0) or CC BY-SA 2.5 (https://creativecommons.org/licenses/by-sa/2.5)], from Wikimedia Commons