Pacific Hairgrass

Deschampsia cespitosa subsp. holciformis

Native to:
Canada, United States

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