You could also choose the lower-growing Penstemon eatonii, commonly known as the firecracker. This variety has a slightly more shrubby habit, growing up to 3 feet tall in hardiness zones 4 through 8.

Derived from a small flowering shrub that's native to much of the western United States, pineleaf penstemon will grow in USDA hardiness zones 4 through 9, meaning it accommodates a range of climates.

A low-growing perennial that favors sandy washes and dunes, the white-margined penstemon has pretty pink flowers and leaves with white margins. It is threatened with extinction by urban sprawl, energy ...

If we don’t act to save the state’s rare plants and animals, they’ll disappear forever.” The white-margined penstemon is a rare low-growing perennial wildflower that lives on sandy washes and ...