Rocky Mountain Penstemon
Showy plants that flower 2 feet tall with bright spikes of intense blue-purple colored flowers. The dense blooming spikes are in flower for over five weeks in late spring. Spreading clumps grow to 3 feet wide. Penstemon strictus is an easy to grow Penstemon that is long lived. Foliage is thick with long, thin smooth leaves that have a dull glossy sheen. Will bloom the second year. Use in quick draining soils and keep dry over the winter.