Renowned for colorful flowers that often have detailed markings, irises are some of the most popular cottage garden plants. As a former professional gardener, I have grown many different species belonging to the Iris genus, ranging from flamboyant bearded irises in borders to miniature varieties for pot displays.

There are over 300 Iris species growing worldwide, most of which are native to Europe and Asia. However, there are 28 species native to North America, many of which are rare or threatened. As many of these native species grow in fragile ecosystems, such as meadows, swamps or wetlands, it is important, where possible, to grow and nurture these special irises.

So, if you are considering what native planting to add to your yard, why not consider some of the best non-bearded iris varieties found across North America? Our guide has all the necessary information, including planting tips to get them in the ground and established during the fall months.

The Rocky Mountain iris, Iris missouriensis, is a hardy native species with detailed markings

(Image credit: Kristine Radkovska via Getty Images)

5 best native irises


Known for their colorful flowers with intricate markings, irises are popular plants in cottage gardens. With experience as a professional gardener, I have cultivated various species of irises, from flamboyant bearded irises in borders to miniature varieties for pot displays.

There are over 300 species of irises worldwide, with most native to Europe and Asia. However, North America is home to 28 native species, some of which are rare or endangered. It is crucial to grow and protect these native irises, especially those found in delicate ecosystems like meadows, swamps, and wetlands.

If you’re thinking about adding native plants to your yard, consider some of the best non-bearded iris varieties in North America. Our guide provides all the necessary information, including planting tips for fall establishment.


The Rocky Mountain iris, Iris missouriensis, is a hardy native species with detailed markings

(Image credit: Kristine Radkovska via Getty Images)

5 best native irises

If you’re familiar with growing irises, you know how impressive these plants can be. While they vary in color, shape, and size, most iris varieties are known for their upright petals (standards) and dropping sepals (falls), creating a fireworks-like display.

Native irises grow across the lower 48 states and Alaska, from high elevations in the Rocky Mountains to low swampy areas in the lower Mississippi River valley. Here are the five best native irises to plant in the fall.

1. Southern Blue Flag Irises

If you’re interested in blue flowers and wet environments, the southern blue flag iris, Iris virginica, is a great choice. This native species thrives in US hardiness zones 5 to 9 and can reach heights of two to three feet. Plant them in full sun with wet roots, making them ideal for pond edges.

For a wet or damp yard, the blue flag iris, Iris virginica, is a good option

(Image credit: Getty Images/Sandi Smolker)

We grow various Iris types at Oudolf Garden Detroit, including the native blue flag iris, Iris virginica, which thrives in moist soils and rain gardens, blooming pale blue in late spring and summer.

This native iris has striking purple and yellow markings, sure to add impact to any border in your yard.