Iris versicolor, or Northern Blue Flag is a 2-3 foot wetland perennial preferring full to part sun in moist to wet soils. Northern Blue Flag’s blue flowers with yellow throats arise from sword-shaped leaves from June to July. The perennial serves as a great pond plant.
Light: Sun-Part Sun
Soil moisture: Wet-Moist
Height: 2-3′
![Iris versicolor Northern Blue Flag Iris](https://www.keystonewildflowers.com/media/iris-versicolor-northern-blue-flag-iris-square.jpg)