perennial

Penstemon strictus | Rocky Mountain Penstemon

Rocky Mountain Penstemon produces spires of large, brightly colored, blue-purple flowers that rise above the leaves. Tolerates heavy soils but prefers rocky, sandy, well drained soil. Canopy coverage: 3 square feet.

Water Requirement: low

Sun Exposure: partial shade, full sun

Cold Hardiness: cold hardy to -20F

Growth Rate: moderate

Height: 3 feet high

Width: 2 feet wide

Evergreen

Foliage Color: blue-green

Flower Color: purple, blue

Flower Season: summer

Wildlife: hummingbirds, butterflies