Northern Blue Flag Iris

Northern Blue Flag Iris (Iris versicolor) is a striking native perennial known for its graceful form, vivid blooms, and love of wet soils, perfect for planting along pond edges, in rain gardens, or in moist low-lying areas where beauty and ecological function go hand in hand.

In late spring to early summer, this iris sends up elegant stalks of blue-violet flowers with delicate yellow and white markings, rising above dense, sword-like green foliage. The leaves form upright clumps that reach up to 3 feet tall, offering both structure and movement in the garden.

Beyond its ornamental appeal, Northern Blue Flag Iris plays an important ecological role by stabilizing soil in wet environments and offering shelter and foraging opportunities for wildlife.

Why Choose Northern Blue Flag Iris?

• Showy native blooms – Blue-violet flowers with striking markings.
• Perfect for wet soils – Thrives in rain gardens and pond edges.
• Supports healthy ecosystems – Helps stabilize soil and support habitat.

Plant Northern Blue Flag Iris in full sun to part shade with consistently moist soil to enjoy a visually stunning, water-loving native that brings elegance and ecological value to your landscape.

• Thrives in wet conditions; ideal for planting in areas that are consistently moist or shallowly flooded.
• Best divided in late summer or early fall every few years to rejuvenate clumps and spread the beauty of the flowers.
• Check regularly for pests like iris borers and treat fungal issues promptly to maintain healthy plants.