Pest identification
What's eating my white beardtongue?
Aphids
Signs: Small colonies on stem tips and flower buds in spring; honeydew and minor leaf curl.
Control: Spray with water or dilute insecticidal soap; encourage beneficial predatory insects.
Deer & pronghorn
Signs: Foliage and flower heads browsed in native grassland and garden edge settings.
Control: Wire caging for garden specimens; established clumps re-grow well after light browsing.
Root rot–associated fungus gnats (in cultivation)
Signs: Wilting and root damage in waterlogged containers or heavy soils; larvae feed on roots.
Control: Ensure sharp drainage; allow soil to dry between waterings; use yellow sticky traps to monitor adults.
Keep white beardtongue pest-free
Healthy plants resist pests best. Get the basics right:
White Beardtongue pests — FAQ
What is eating my white beardtongue?
White Beardtongue (Penstemon albidus) is a Great Plains native adapted to dry, exposed conditions and has few serious pests. Aphids may appear on new growth, and deer or pronghorn browse the foliage in native range settings. Excess moisture is the bigger risk — good drainage prevents the root diseases that weaken plants and attract secondary pests.
How do I get rid of aphids on white beardtongue?
Small colonies on stem tips and flower buds in spring; honeydew and minor leaf curl. Spray with water or dilute insecticidal soap; encourage beneficial predatory insects.
How do I get rid of deer & pronghorn on white beardtongue?
Foliage and flower heads browsed in native grassland and garden edge settings. Wire caging for garden specimens; established clumps re-grow well after light browsing.
How do I get rid of root rot–associated fungus gnats (in cultivation) on white beardtongue?
Wilting and root damage in waterlogged containers or heavy soils; larvae feed on roots. Ensure sharp drainage; allow soil to dry between waterings; use yellow sticky traps to monitor adults.