Northwest Blooms · Perennials
Iris sibirica 'Bennerup Blue'
Bennerup Blue Siberian Iris
- Family
- Iridaceae
- Height
- 2 to 3 feet
- Width
- 1 to 3 feet
- Flower color
- Cobalt and pale blue
- Foliage color
- Dark green, slender, sword-like leaves
- Bloom time
- Late spring to early summer
- Light
- Full sun to partial shade
- Water
- Moist to wet soil; tolerates standing water
- Maintenance
- Low; remove faded flowers to encourage continuous blooming
- Growing zone
- USDA zones 3 to 9
- Wildlife
- Attracts butterflies and hummingbirds
About this plant
Iris sibirica 'Bennerup Blue' is a cultivar known for its soft blue flowers that bloom from late spring to early summer. The delicate, ruffled petals create a charming contrast against its narrow, upright foliage, which remains attractive even after the flowering period. This Siberian iris thrives in well-drained, moist soils and makes an excellent choice for perennial borders, water gardens, and naturalized areas.
Bred for its resilience and graceful appearance, 'Bennerup Blue' tolerates both wet and dry conditions once established. Its upright, clumping growth habit ensures that the flowers remain visible throughout the bloom season, while the plant's compact nature makes it suitable for smaller spaces. Native to the moist meadows and wetlands of Eurasia, this cultivar brings a touch of elegance and ease to a variety of garden settings.
Works well in
Borders · Cottage Gardens · Pollinator Gardens · Hummingbird Gardens · Rain Gardens
Companion plants
Bergenias · Sedums · Columbines · Lungworts · Daylilies · Japanese anemones
Design tip
Summer flowers carry the middle of the season, so place it where the bed needs color once spring bulbs fade. Because it is easy about light, use it to carry a planting from a sunny end of the bed into the shadier side.
