This is another Penstemon to consider. Canyon Penstemon is native to elevations from 2,000 to 6,000 feet. It reseeds to continue and extend plantings. Sow seeds in fall for plants and flowers the following spring. Canopy coverage: 3 square feet.
Water Requirement: low
Sun Exposure: partial shade, full sun
Cold Hardiness: cold hardy to -20F
Growth Rate: moderate
Height: 1 feet high
Width: 2 feet wide
Evergreen
Foliage Color: medium green
Flower Color: purple
Flower Season: spring
Wildlife: hummingbirds, butterflies