Penstemon angustifolius is a species of perennial flowering plant with common names broadbeard beardtongue and narrowleaf beardtongue. It is native to the west-central United States, including the Great Plains.

This species is a perennial herb with thick, waxy, gray-green stems growing up to 24 inches tall. The flowers come in shades of pink and purple. The flowers attract hummingbirds!

This species grows on grasslands and in sandy habitat types, such as dunes. It is drought-tolerant. This plant can be used in landscaping and as a garden plant in xeriscaping situations.

Hardiness zones: 4-10

Seeds per pack: 20

Germination: Start these seeds right away to preserve viability, no matter the time of year. Sow the seeds just under the surface of a sterile seed-start mix, and water in. Leave them at room temperature for 2 weeks. They will not grow yet. Then a cooling period is required. Cover them with plastic and place in a fridge for 5-6 weeks. Be sure they stay moist. After the cold-moist stratification period they are then brought back to room temperature (20-22 °C, 68-72 °F) for them to germinate. Germination is in 14-60 days after the warming period. If possible, the best location for sowing in March, April and May, is in cold frame or a cold greenhouse where they will receive the cold period and fluctuating temperatures naturally.