Timber Oatgrass
Danthonia intermedia
- Native to:
- Canada, Labrador, Russia, United States
iNaturalist: © rroutledge (iNaturalist #31209791)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Danthonia
- Species:
- Danthonia intermedia
- USDA Symbol:
- DAIN
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 50 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from basal buds following fire. Common component of montane and subalpine grasslands with natural fire regimes.
Soil Requirements
- Soil Type:
- well-drained, sandy or loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers open, sunny habitats
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Cold stratification improves germination rates. Seeds germinate well at cool temperatures.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds exhibit physiological dormancy
Establishment: Seeds are collected in Rocky Mountain National Park, Colorado. The seeds may need to be removed from glume for full germination. D. intermedia is found from Alaska to Newfoundland and south to Michigan and in the mountains and prairies of the western United States.
Source: npn.rngr.net