Interior Rush
Juncus interior
Last reviewed: June 2026
The USDA PLANTS Database (opens in new tab) does not flag Interior Rush as toxic to livestock.
Light
full sun
Water
medium
Size
6"–24" H × 2"–8" W
Bloom
Jun, Jul, Aug
Native to
AL, AR, AZ, CO and 20 more states
Browse plants for this ecoregion
Interior rush is a native grass-like perennial that forms neat, upright clumps of slender green stems. It produces small, inconspicuous flowers in summer and maintains a tidy, fountain-like appearance throughout the growing season.
In an HOA neighborhood
Interior Rush 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
This rush provides nesting material and cover for birds, while its seeds feed small songbirds and waterfowl.
Common questions
- How much sun does Interior Rush need?
- Interior Rush grows best in full sun conditions.
- When does Interior Rush bloom?
- Interior Rush blooms in June, July, and August.
- Where is Interior Rush native?
- Interior Rush (Juncus interior) is native to AL, AR, AZ, CO and 20 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Interior Rush toxic to livestock?
- The USDA PLANTS Database does not flag Interior Rush as toxic to livestock.
- Is Interior Rush HOA-friendly?
- Interior Rush 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.
Ready to grow Interior Rush? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz