Blue Flag Iris: Iris versicolor

Blue Flag Iris
Iris versicolor
 
A striking native perennial with elegant blue-violet flowers that bring beautiful color and structure to wet gardens and water edges. Blue Flag Iris is an excellent choice for rain gardens, pond margins, wetlands, and other areas where the soil remains consistently moist.
 
Its showy flowers feature distinctive violet-blue petals with delicate yellow and white markings, creating an eye-catching display in late spring and early summer. The upright, sword-shaped foliage adds architectural interest throughout the growing season, while the flowers provide a seasonal resource for native pollinators. Blue Flag Iris is a wonderful addition to native plantings designed to support wildlife and bring vibrant color to moisture-rich landscapes.
 
Growing Conditions:
Sun: Full sun to part shade
Soil moisture: Medium-wet to wet
Soil: Moist, rich soil; tolerates saturated conditions
Height: 2–3 ft
Bloom time: Late spring to early summer
Flower color: Blue-violet with yellow and white markings
Native range: Eastern and central North America
 
Wildlife Value:
Attracts native bees and other flower-visiting insects
Provides seasonal floral resources for pollinators
Adds native vegetation and structural diversity to wetland habitats
Well suited to gardens that support wetland-associated wildlife
 
Don't Worry If It Doesn't Flower Right Away:
Native perennials don't always flower their first year, and that's completely normal! Young plants often put much of their energy into developing a strong root system and establishing themselves in their new environment. Depending on the species, you may see limited or no flowering during the first growing season, with more substantial flowering beginning in year two and beyond.
 
Watering for Establishment:
For the best results, water your new plants regularly during their first 6 weeks after planting, particularly during periods of hot or dry weather. Blue Flag Iris thrives in consistently moist to wet soil and is especially well suited to rain gardens, pond edges, and naturally damp areas. Avoid allowing the soil to dry out completely, particularly during its first growing season.
 
Plant for the future: The first year is about putting down roots. Give your native plants time to establish, and you'll be rewarded with stronger, more resilient plants in the seasons ahead.
 
Garden Use:
Great for rain gardens, pond margins, wet meadows, wetland restorations, and moist native perennial gardens. Its upright foliage pairs beautifully with other moisture-loving native plants, adding height and structure even when the flowers have faded. Plant in groups to create a more noticeable display of blue-violet blooms along water edges and in consistently damp areas.
 
WNS Note:
Iris versicolor is a native perennial that brings both ornamental beauty and ecological value to wetland-inspired gardens. Its distinctive flowers and upright foliage make it an excellent choice for adding seasonal color and structure to moisture-rich landscapes. Like other native irises, it is best suited to locations where its moisture requirements can be met.
 
Sourcing:
Seeds were sourced from a wild population in Erie County, New York, supporting the use of locally sourced native plant material adapted to the region.