Glaucus Willowherb

Epilobium glaberrimum Barbey - Evening Primrose family

Size

Mature Height: Up to around 24 inches

Plant Type: Forb/herb

Root Depth: 8 inches

Growth Form: Rhizomatous

Growth Rate: Slow

Features

Flower Color: Purple

Conspicuous Flowers: No

Bloom Time: Mid Summer

Seasonal Growth: Spring and Summer

Evergreen: No

Fall Colors: No

Conditions

Shade Tolerance: Tolerant

Clay Soil Tolerance: Yes

Sandy Soil Tolerance: No

Drought Tolerance: Low

Flood Tolerance: None

Fire Tolerance: High

Salt Tolerance: None

Ecosystem Interactions

Pollinators: Native Bees

Native Range

  • CAN:  Alberta, British Columbia
  • USA:  Arizona, California, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming
  • MEX:  Mexico Northeast, Mexico Northwest
Regional Native Status: L48 (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.