Penstemon Red Rocks puts on a great show of
pinkish red flowers. Compared to the Penstemon gloxinoides group, I
have had less pest issue. 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.
High
resolution images of Penstemon
Red Rocks are
available.
