Lyall's Beardtongue
Penstemon lyallii
- Native to:
- Canada, United States
Nucatum amygdalarum





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Plantaginaceae
- Genus:
- Penstemon
- Species:
- Penstemon lyallii
- USDA Symbol:
- PELY2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- lavender, purple
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, hummingbirds, butterflies
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from crown after fire; often found in post-fire montane habitats.
Soil Requirements
- Soil Type:
- well-drained, rocky or sandy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to mountainous regions, prefers open slopes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Germination Time:
- 14–30 days
- Notes:
- Requires light for germination; surface sow and do not cover seeds.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds require a 30 to 90 day cold, moist stratification. They are placed in fine mesh bags and buried in moist peat moss in ventilated containers under refrigeration at 1 to 3C.
Establishment: Seeds are collected in late August when capsules turn brown and begin to dehisce. They are brown at maturity and are collected in paper bags and kept in a well ventilated drying shed prior to cleaning.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 4C.