From California Natives Wiki
Species Name: Dichelostemma congestum
Common Name: Ookow
- Showy purple-blue flowers atop long stalks. Similar to blue dicks (D. capitatum) but larger flowers.
- Plant Family: Liliaceae
- Plant Type: Bulb
- Height by Width: 1-2' H
- Growth Habit: Clumping
- Deciduous/Evergreen: Summer deciduous
- Growth Rate: Fast
- Sun Exposure: Full to part sun
- Soil Preference: Adaptable
- Water Requirements: Summer dry
- Cold Hardy to: 6,000'
- Flower Season: Spring
- Flower Color: Violet
- Distribution: Northwest, Cascade Range, northern Sierra Nevada
- Natural Habitat: Open woodland, grassland near coast. Elevation: 0 - 6000'
- Care and Maintenance
- Other Names
- Harlow, Nora and Kristin Jakob. Wild Lilies, Irises, and Grasses: Gardening with California Monocots. Berkely and Los Angeles, CA: University of California Press. 2003.