Some varieties, like Penstemon digitalis ... Sowing seeds outside in the fall or early winter will let these plants grow naturally. Dig a small hole to plant the seed up to a half-inch deep ...

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 ...