Penstemon grandiflorus

Penstemon grandiflorus has large, lavender-pink to purple flowers that attract hummingbirds. The blue-green leaves are shaped like shells.

Penstemon grandiflorus is one of the hardiest and showiest penstemons. It is relatively easy to grow, tolerating more moisture than most species. Of course, it still needs well-drained soil, and it may require staking in wet weather because the flowering stems are heavy.

Also known as Penstemon grandiflora and Large-Flowered Beardtongue. Native to the Great Plains.

Hardiness Zones: 4-9

Height: 30"

Spacing: 12"

Light: Full sun

Sowing Penstemon grandiflorus Seeds

Sow seeds outdoors in pots in late fall or winter. Or start indoors, then refrigerate the pots for 6 weeks. Lightly cover the seeds with soil.