PENSTEMON strictus (Rocky Mountain Penstemon)

PENSTEMON strictus (Rocky Mountain Penstemon) is a perennial flowering plant native to the Rocky Mountains of North America. It is a member of the genus Penstemon, which belongs to the family Plantaginaceae. Rocky Mountain Penstemon is a clump-forming plant that grows up to 2 feet (60 centimeters) tall. It has stiff, upright stems with narrow, lance-shaped leaves that are grayish-green in color.

The plant produces striking, tubular flowers that are typically deep blue to violet in color, with a white or light-colored throat. The flowers are arranged in dense spikes at the top of the stems and bloom in late spring to early summer. The tubular shape of Rocky Mountain Penstemon's flowers is adapted for pollination by hummingbirds, who are attracted to the nectar-rich blooms. Bees and butterflies also visit the flowers for nectar and play a role in pollination.

This species is native to the higher elevations of the Rocky Mountains, including regions of Colorado, Wyoming, Montana, and New Mexico. It thrives in dry, rocky slopes, meadows, and open woodland habitats.

PENSTEMON strictus is well-adapted to the mountainous regions it inhabits. It can tolerate a wide range of soil conditions, including rocky and gravelly soils. It is also highly drought-tolerant and can withstand cold temperatures.

PENSTEMON strictus is a popular choice for rock gardens, wildflower gardens, and native plant landscapes. It adds vibrant color to the garden and provides habitat for pollinators. It prefers well-drained soil and full sun to partial shade.