Penstemon smallii
$11.95
The western U.S. has numerous splendiferous blue-flowered beardtongues, few of which thrive in the flatlands of the East, sadly. Here's one of the exceptions. The brilliant violet-blue, sharkshead-shaped flowers have a metallic sheen that further increases their amperage. A site with relatively porous soil suits it best. Propagated from seed. Deep 3.5-inch pots. Zone 5. Photo: JerryFriedman