Birdbill Woodoats
Chasmanthium ornithorhynchum
- Native to:
- United States
iNaturalist: © janetwright (iNaturalist #194390865)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Chasmanthium
- Species:
- Chasmanthium ornithorhynchum
- USDA Symbol:
- CHOR3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 90 cm
- Light Requirements:
- Part Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- aug,sep,oct
- Bloom Colors:
- green
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Deer Resistant:
- Yes
- Fall Color:
- bronze, tan
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from rhizomes following fire; adapted to occasional woodland fires.
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- good drainage preferred
- Moisture:
- consistently moist
- Notes:
- prefers shaded areas in native habitat
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Sow seeds on surface or lightly cover; prefers cool temperatures for germination.
The above propagation data sourced from Claude AI