Penstemon attenuatus

Penstemon attenuatus blooms in May with clusters of vivid blue flowers. It is the earliest species to bloom in my garden. It is relatively easy to grow.

Penstemon attenuatus is very cute in the rock garden or at the front of the border. It thrives in ordinary garden conditions. Native to Washington and Idaho.

Hardiness Zones: 4-9

Height: 18"

Spacing: 10"

Light: Full sun

Sowing Penstemon attenuatus Seeds

Sow seeds outdoors in pots in late fall or winter. Or start indoors, then refrigerate the pots for 8 weeks. Lightly cover the seeds with soil.

Home-grown seeds.