My Deer Garden

Is Iris deer resistant?

Iris sp.

Blue iris flower
Photo by Diliff, CC BY-SA 3.0. Via Wikimedia Commons.
Rarely damaged

Deer almost always leave this alone.

Rating source: Rutgers NJAES E271

Toxic to cats and dogs if eaten

About Iris

Rhizomes and foliage are both unpalatable, so the whole genus is dependable in deer country. Siberian types take damp ground; bearded types need to bake dry.

Soil and care

Soil pH
6 to 7.5
Drainage
Well drained
Water
Moderate
Spacing
12 to 18 in apart
Growth rate
Moderate
Maintenance
Moderate

Similar to Iris

Other perennials with the same deer rating.

Where Iris grows

Hardy across most of these 51 states on zone range alone. Mountain and coastal areas sit outside the ranges used here, so check your own zone before ordering.

Browse from here

Every list Iris belongs to.

Hardy in these zones

Common questions about Iris

Is Iris deer resistant?
Iris (Iris sp.) is rated Rarely Damaged on the Rutgers NJAES four-tier scale. Deer almost always leave this alone.
What hardiness zones does Iris grow in?
Iris is hardy in USDA zones 3 to 9. Outside that range it will either not survive winter or will struggle with summer heat. That is the range across the genus, so a named species or cultivar may be narrower.
Does Iris grow in shade?
No. Iris wants full sun and will grow thin and flop in shade.
Is Iris toxic to dogs or cats?
Yes. The ASPCA lists Iris as toxic to dogs, cats, and horses. Site it away from where animals graze, or choose something else if you have a dog that chews.