Native Habitat:
Dry, open woodlands, forest edges, rocky slopes, foothills, and open grasslands of western North America. In the Pacific Northwest, it is associated with sunny, well-drained sites and seasonally dry soils, often occurring in disturbed or open habitats where competition from taller vegetation is limited.
 
Bloom Time:
May – July
 
Growth Habit & Mature Size:
Annual or short-lived herb, typically 8–24 inches tall, with branching, hairy stems and deeply divided or lobed leaves. The coiled flower clusters characteristic of Phacelia produce numerous small, bell-shaped flowers that range from pale lavender to blue-purple.
 
Light & Soil Requirements:
Full sun to light shade; prefers dry to moderately moist, well-drained sandy, gravelly, or loamy soils. Best growth occurs where spring moisture is followed by summer drying.
 
Willamette Valley Native Companion Plants:
Achillea millefolium
Eriophyllum lanatum
Festuca idahoensis
Lomatium nudicaule
Wyethia angustifolia
Prunella vulgaris var. lanceolata
 
Urban Garden Function:
A useful seasonal wildflower for dry meadows, pollinator gardens, prairie restorations, and sunny native borders. Its branching habit and lavender flowers fill spaces between bunchgrasses and larger perennial forbs while providing a concentrated burst of spring and early-summer bloom. It is particularly useful in low-water landscapes where a short-lived, disturbance-tolerant wildflower can establish quickly.
 
Wildlife Supported:
The flowers are especially valuable to native bees, including bumblebees, mining bees, sweat bees, and other solitary bees. The open floral resources also attract hoverflies, small butterflies, and other flower-visiting insects. Phacelia species can be particularly useful for supporting diverse bee communities because their flowers provide readily accessible pollen and nectar. The foliage also provides food for a variety of insect herbivores, which in turn support insect-eating birds and predatory arthropods.
 
Historical Use:
Phacelia bolanderi has primarily been valued as a native wildflower rather than as a major traditional food plant. Today, its greatest value is ecological: it contributes nectar and pollen to native pollinators and is useful in native meadow and restoration plantings.
 
Seed Germination:
Sow seeds in fall or early spring on the surface of a well-drained seed-starting mix and press them gently into the soil. Do not bury deeply, as light can assist germination. Keep the medium evenly moist but not saturated. Cold-moist stratification for approximately 30 days can improve germination, particularly when spring-sown. After stratification, provide bright light and temperatures around 55–70°F (13–21°C). Germination typically occurs within several weeks but may be somewhat irregular. Once seedlings are established, transplant carefully because Phacelia generally develops a relatively sensitive root system.