Penstemon incertus is showy sky blue flowered perennial about 2 ft by 2ft with gray foliage. Desert Penstemon grows along the desert edges from north L.A. to Lone Pine. At the top of Walker Pass it makes a mass showing each year. A delightful plant with delightful flowers. It grows in granite or sandy soils. The rainfall it grows on ranges from 10-15 inches per year. Companion plants are Joshua tree, Pinyon, Desert sunflower, Desert Purple sage and Desert Olive. It loves a south facing gravelly bank on the nursery grounds that is so miserably hot and cold the weeds have trouble. A very tough plant it can handle dry, cold and hot conditions with ease. Click here for more about California Penstemons.
Penstemon incertus tolerates sand.
Penstemon incertus is great for a bird garden.
Foliage of Penstemon incertus is evergreen.
Flower of Penstemon incertus has color blue.
Communities for Penstemon incertus:Joshua Tree Woodland, Pinyon-Juniper Woodland and Central Oak Woodland.