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German Iris

Iris germanica

Last reviewed: June 2026

German Iris produces showy blue to purple flowers in May and June across states from Alabama to Wisconsin. This drought-tolerant perennial attracts bees and beetles with its distinctive bearded blooms.

German Iris (Iris germanica)
Photo: Za / Wikimedia Commons (CC BY-SA 3.0)

German Iris is toxic to dogs and cats.

Listed as toxic by the ASPCA Animal Poison Control Center (opens in new tab) (last reviewed 2026-05-21). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435and your veterinarian's emergency line.

Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.

Light

full sun

Water

low

Size

12"–36" H × 12"–24" W

Bloom

May, Jun

Native to

AL, IL, KY, MD and 5 more states

Pollinators

bees, beetles

German iris produces distinctive sword-like leaves and showy purple, blue, or white flowers in late spring. This classic perennial forms neat clumps that work well in formal garden beds and requires minimal water once established.

Growing German Iris

Grow German Iris in full sun and low water. Mature plants reach 12 to 36 inches tall and spread 12 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

German Iris is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

  • Foliage may look shabby after blooming if not maintained

Wildlife value

The large, colorful blooms attract bees and beetles during the May-June flowering period. The sturdy flower structure provides good landing platforms for pollinators.

Common questions

When does German Iris bloom?
German Iris blooms in May and June, producing large, distinctive flowers with characteristic beard-like structures on the lower petals.
What pollinators visit German Iris?
German Iris attracts bees and beetles, which are drawn to the flowers for nectar and pollen during the spring blooming period.
Where is German Iris native in the United States?
German Iris is native to Alabama, Illinois, Kentucky, Maryland, Minnesota, New York, Tennessee, Utah, and Wisconsin.
How much water does German Iris need?
German Iris has low water requirements and is quite drought tolerant once established, making it suitable for xeriscaping and water-wise gardens.
Is German Iris toxic to dogs?
Yes. German Iris is listed as toxic to dogs by the ASPCA Animal Poison Control Center (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is German Iris toxic to cats?
Yes. German Iris is listed as toxic to cats by the ASPCA Animal Poison Control Center (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is German Iris HOA-friendly?
German Iris is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Pollinator Patch flags toxic plants like German Iris and shows pet-safe natives for your ecoregion instead.

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