Native Habitat:
Wet meadows, streambanks, and moist open areas.
 
Bloom Time:
June – August
 
Growth Habit & Mature Size:
Perennial herb, 1–2 feet tall, with square stems, aromatic leaves, and spreading rhizomes. Produces spikes of small purple to lavender flowers.
 
Light & Soil Requirements:
Full sun to partial shade; thrives in moist, fertile soils with good drainage. Prefers consistently damp conditions.
 
Willamette Valley Native Companion Plants:
Camassia leichtlinii, Achillea millefolium, Sidalcea campestris, Festuca roemeri, Eriophyllum lanatum.
 
Urban Garden Function:
Adds fragrant foliage, seasonal flowers, and groundcover to urban gardens, pollinator gardens, and naturalized wetland-inspired landscapes. Works well in layered plantings and along stream edges or rain gardens.
 
Wildlife Supported:
Flowers attract native bees, butterflies, and other pollinators. Dense foliage provides shelter for insects and small invertebrates.
 
Historical Use:
Leaves and stems were used by Indigenous peoples for medicinal and culinary purposes; valued ornamentally for fragrance and pollinator support in garden plantings.