Western Cowbane

Oxypolis occidentalis

Native to:
Canada, United States
Western Cowbane

Patrick Alexander (www.flickr.com) from Las Cruces, NM

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Apiaceae
Genus:
Oxypolis
Species:
Oxypolis occidentalis
USDA Symbol:
OXOC

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
150 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug
Bloom Colors:
white

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
butterflies, native bees, beneficial insects

Soil Requirements

Soil Type:
rich, moist, well-drained soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Commonly found in wetlands and marshy areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–42 days
Notes:
Seeds require cold-moist stratification and consistent moisture for germination.

The above propagation data sourced from Claude AI