Northwest Blooms · Perennials
Iris douglasiana
Douglas Iris
- Family
- Iridaceae
- Height
- 1 to 2 feet
- Width
- 2 to 4 feet
- Flower color
- Variable shades including blue, purple, lavender, and white, often with darker veining and a yellow signal
- Foliage color
- Sword-shaped, dark green leaves
- Bloom time
- Early to mid-spring
- Light
- Full sun to partial shade
- Water
- Low; drought-tolerant once established
- Maintenance
- Low; remove faded flowers to encourage continuous blooming
- Growing zone
- USDA zones 7 to 9
- Wildlife
- Attracts butterflies
About this plant
Iris douglasiana is a perennial native to the coastal regions of California. It produces elegant flowers that bloom in early spring in delicate shades of blue, purple, and occasionally white. These flowers are often marked with darker veining, and feature a yellow signal, adding complexity to their appearance. The plant is well-suited to its native environment, thriving in areas with mild winters and cool, foggy summers.
The blooms of Iris douglasiana are held above the foliage on tall, slender stems, creating a gentle, arching form. The flowers' delicate structure, combined with their rich color variations, makes them ideal for adding a natural touch to informal or woodland gardens. It is often chosen for its resilience and ability to thrive in challenging conditions, such as along coastal cliffs or in shaded areas.
Works well in
Borders · Cottage Gardens · Pollinator Gardens · Waterwise Gardens · Containers
Companion plants
Lady's mantle · Hellebores · Hardy geraniums · Hostas · Ferns · Astilbes
Design tip
The early flowers arrive when the garden is still waking up, so give it a spot you pass often in spring. It takes sun or light shade, which makes it useful along the changing light of a bed edge or a partly shaded border.
