Wiegand's Wildrye
Elymus wiegandii
- Native to:
- Canada, United States
iNaturalist: © williamwanders (iNaturalist #237223034)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Elymus
- Species:
- Elymus wiegandii
- USDA Symbol:
- ELWI
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 120 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug
Host Plant for Caterpillars
Benjaminiola colorada, Burdock Borer (Papaipema cataphracta), Cosmiotes illectella, Elachista leucofrons, Faronta albilinea, Faronta diffusa, Mesapamea stipata, Zabulon Skipper (Poanes zabulon)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from base after fire; typical of cool-season bunchgrasses.
Soil Requirements
- Soil Type:
- moist, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- good drainage required
- Moisture:
- consistently moist
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–28 days
- Notes:
- Cool temperatures preferred for germination. Light may improve germination rates.
The above propagation data sourced from Claude AI