Largeflower Speargrass

Arctopoa eminens

Native to:
Aleutian Is., Canada, Japan, Kuril Is., Labrador, Russia, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Poaceae
Genus:
Arctopoa
Species:
Arctopoa eminens
USDA Symbol:
POEM

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Graminoid
Height:
40 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug

Garden & Ecology Notes

Wildlife Value:
waterfowl, shorebirds
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
moist, fertile, well-drained loam
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers open, sunny habitats

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
7–21 days
Notes:
Light may enhance germination. Seeds germinate best at cool temperatures typical of arctic and subarctic conditions.

The above propagation data sourced from Claude AI