Rocky Mountain Penstemon, Porch Penstemon
Scientific Name: Penstemon strictus Benth.
Family: Scrophulariaceae
Sunset®: 1-3,10-13
USDA: 3-8
Heat Tolerance: Light shade in Phoenix
Sun Exposure: Full sun to light shade
Origin: USA (Colorado, New Mexico, Utah, Arizona, Wyoming), 6000 to 8000 feet elevation (1800-2400 m)
Growth Habits: Perennial, up to 2 feet tall (60 cm), 18 inches wide (45 cm)
Watering Needs: Little water, drought resistant, needs good drainage
Propagation: Seeds (don't cover the seeds)
The species epithet 'strictus' comes from the Latin for 'erect, upright'.
Blooming Habits:
The Rocky Mountain Penstemon has purple to violet flowers, up to 1 inch long (2.5 cm), in June to August.
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