Aka Barrett's Penstemon. Grows in shady, dry, rocky places, often rooted on rock walls and cliffs. Endemic only to a small section of East Columbia Gorge. In home garden, place in rock wall, or between large stones with good drainage.
Size at maturity: 9"-15"
- Canopy layer: groundcover
Light requirements: part sun / part shade
- Moisture requirements: dry to moist, well-drained soil
- Special features: supports hummingbirds
Bloom time: April to May
Photo Credit: Penstemon barrettiae [Ghent University Botanical Garden, Belgium]" by KHQ Flower Guide is licensed under CC BY-SA 2.0