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Native Habitat:

Open woodlands, meadows, and grassy slopes in western North America, including the Willamette Valley. Prefers well-drained soils and partially open sites.

 

Bloom Time:

April – June

 

Growth Habit & Mature Size:

Annual or short-lived perennial herb, 6–18 inches tall, with slender stems and opposite leaves. Produces clusters of showy two-lipped flowers in shades of blue, purple, and white.

 

Light & Soil Requirements:

Full sun to partial shade; prefers well-drained, sandy or loamy soils. Tolerates nutrient-poor soils.

 

Willamette Valley Native Companion Plants:

Camassia quamash, Achillea millefolium, Eriophyllum lanatum, Sidalcea campestris, Festuca roemeri.

 

Urban Garden Function:

Adds vibrant color and vertical accent to urban meadows, pollinator gardens, and naturalized landscapes. Works well in layered native plantings, along pathways, and in low-maintenance wildflower gardens. Its bright flowers provide seasonal interest and support a dynamic, visually appealing habitat.

 

Wildlife Supported:

Flowers attract native bees, bumblebees (Bombus spp.), and small butterflies. Foliage provides shelter for ground-dwelling insects and supports early-season pollinators.

 

Historical Use:

Used by Indigenous peoples and early settlers primarily for ornamental purposes and minor medicinal applications.

Collinsia grandiflora | Giant Blue Eyed Mary

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