California Gardens - The Year Round Gardening Site

Penstemon Red Rocks

Penstemon Red Rocks puts on a great show of pinkish red flowers. Penstemon Red Rocks is a hybrid of Penstemon mexicali. Compared to the Penstemon gloxinoides group, I have had less pest issues with these hybrids. The plants tend to flop more but produce more flowers. Penstemon Red Rocks is drought tolerant but will flower best with a moderate amount of water. The plants are at their best for two to three years but they do a tremendous job of quickly filling in a young garden or a newly opened space. I trim off the dead flowers and cut Penstemon Red Rocks back heavily in the late winter. If the plants air-layer on their own they can extend their lifespan significantly.

Penstemon Red Rocks

Red flowers with a pale throat - Penstemon Red Rocks. High resolution photos are part of our garden image collection.