One And A Half Flower Reedgrass
Calamagrostis sesquiflora
- Native to:
- Aleutian Is., Canada, Japan, Kuril Is., Russia, United States
iNaturalist: © krylenkosl (iNaturalist #135926733)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Calamagrostis
- Species:
- Calamagrostis sesquiflora
- USDA Symbol:
- CASE24
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 120 cm
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
Host Plant for Caterpillars
Chequered Skipper (Carterocephalus palaemon)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Fall Color:
- tan, golden
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts vigorously from rhizomes after fire. Common in post-fire succession in montane wet meadows.
Soil Requirements
- Soil Type:
- well-drained, sandy or gravelly soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- prefers open, sunny locations
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination and perform best with cold-moist stratification followed by spring sowing.
The above propagation data sourced from Claude AI