Pacific Hairgrass
Deschampsia cespitosa subsp. holciformis
- Native to:
- Canada, United States
GBIF: Eric Wrubel






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Deschampsia
- Species:
- Deschampsia cespitosa subsp. holciformis
- USDA Symbol:
- DEHO2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 120 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- green, gold
Host Plant for Caterpillars
black patch (Paratrytone melane)
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
- Fall Color:
- gold, tan
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from basal crown after fire; common in fire-maintained coastal prairies.
Soil Requirements
- Soil Type:
- moist, fertile, well-drained loam
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Prefers habitats like wet meadows and marshes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–28 days
- Notes:
- Light enhances germination; surface sow and keep moist.
The above propagation data sourced from Claude AI