Zigzag Iris
Iris brevicaulis
Last reviewed: August 2026
Iris brevicaulis, the zigzag iris, is a wetland forb that blooms blue-violet from March through May and thrives in moist bottomland soils across the South and Midwest.
Zigzag 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
medium
Size
12"–24" H × 6"–12" W
Bloom
Mar, Apr, May
Native to
AL, AR, FL, IL and 9 more states
Pollinators
hummingbirds
Before you buy
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Zigzag Iris is a compact native perennial that produces delicate blue to purple flowers in spring. This low-growing iris forms neat clumps with sword-like foliage and gets its name from the zigzag pattern of its flower stems.
Growing Zigzag Iris
Grow Zigzag Iris in full sun and medium water. Mature plants reach 12 to 24 inches tall and spread 6 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Zigzag Iris is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
The spring blooms attract hummingbirds with their nectar, and the seeds provide food for various birds.
Common questions
- When does Iris brevicaulis bloom?
- Iris brevicaulis typically flowers from March through May, with timing varying slightly depending on regional spring temperatures.
- What kind of soil moisture does zigzag iris need?
- This iris grows best in consistently moist to wet soil, such as floodplain edges, swales, and low-lying areas that hold water part of the year, though it can tolerate medium moisture once established.
- How much sun does Iris brevicaulis need?
- It performs best in full sun but will still flower with some light shade, especially where afternoon sun is intense.
- What pollinators visit Iris brevicaulis?
- Hummingbirds are drawn to the tubular shape and coloring of the flowers, making this iris a useful addition to a wet-soil pollinator garden.
- Is Iris brevicaulis a good choice for a rain garden?
- Yes, its tolerance for standing water and periodic flooding makes it well suited to rain gardens, pond margins, and low spots that stay damp through spring.
- Is Zigzag Iris toxic to dogs?
- Yes. Zigzag 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 Zigzag Iris toxic to cats?
- Yes. Zigzag 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 Zigzag Iris HOA-friendly?
- Zigzag Iris is generally an HOA-friendly choice in the right placement, with low maintenance.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
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