If you want a perennial flower that is both beautiful and easy to maintain, pineleaf penstemon (Penstemon pinifolius) definitely fits the bill. That's because this perennial has delicate ...

Purple and white penstemon blooms in a garden - Alex Manders/Shutterstock Who doesn't love a long-blooming, low-maintenance perennial with showy blooms that tolerates drought? Every gardener needs ...

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 ...