code: 920
purple-blue flowers open over a long period
Family: Scrophulariaceae
Common name: Cardwell’s Penstemon
Plant Classification: Hardy perennial
Minimum Height: 15 cm
Maximum Height: 30 cm
Amongst the easiest penstemons to grow, these plants form a dwarf evergreen shrub with long, oval, leathery leaves, which in the winter turn purplish. The relatively large, purple-blue flowers open over a long period.
Sowing advice:
For best results, sow seeds immediately onto a good soil-based compost. Cover the seeds with fine grit or compost to approximately their own depth. They can be sown at any time, and germination can sometimes be quicker if kept at 15 to 20 degrees C. However, we sow most seeds in an unheated greenhouse and wait for natural germination as many seeds have built-in dormancy mechanisms, and often wait for spring before emerging regardless of when they are sown. But spring sowing will obviously give them a full season of growth if successful germination occurs.
Information:
Rarity: Uncommon
Flowering Time: Early Summer
Life Cycle: Perennial
Height: 12 inches
Habitat: West-Side Forest
Found In: Cascade Mts., , West Gorge
Native: Yes
