Troubleshooting
Front Range Beardtongue problems — and how to fix them
Front Range Beardtongue (Penstemon virens) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Crown rot in wet or clay soils
Fatal in poorly drained situations. Plant in sharply drained, gritty soil and keep the crown as dry as possible. Raised rock garden settings with gravel mulch are ideal.
Poor performance outside the Mountain West
Endemic to a specific geographic and climatic range. Outside the Rocky Mountain West, humidity, summer heat, or heavy soils cause rapid decline. Best treated as a specialist rock garden plant elsewhere.
Powdery mildew
Can occur in late summer, especially in humid microclimates. Ensure good air circulation between plants and avoid any overhead watering. Remove affected foliage.
Prevent front range beardtongue problems before they start
Most front range beardtongue issues are care-mismatch, not bad luck. Dial in the basics:
Looking for front range beardtongue in general rather than its problems? Read the full front range beardtongue care guide — light, water, soil and feeding.
Front Range Beardtongue problems — FAQ
Why is my front range beardtongue crown rot in wet or clay soils?
Fatal in poorly drained situations. Plant in sharply drained, gritty soil and keep the crown as dry as possible. Raised rock garden settings with gravel mulch are ideal.
Why is my front range beardtongue poor performance outside the mountain west?
Endemic to a specific geographic and climatic range. Outside the Rocky Mountain West, humidity, summer heat, or heavy soils cause rapid decline. Best treated as a specialist rock garden plant elsewhere.
Why is my front range beardtongue powdery mildew?
Can occur in late summer, especially in humid microclimates. Ensure good air circulation between plants and avoid any overhead watering. Remove affected foliage.