Dirty-dora
Cyperus difformis
Last reviewed: June 2026
Light
full sun
Water
high
Size
4"–16" H × 4"–12" W
Bloom
Jun, Jul, Aug, Sep
Native to
AL, AZ, CA, FL and 19 more states
Browse plants for this ecoregion
Dirty-dora is a small annual sedge that forms compact clumps with grass-like foliage and tiny clustered flowers. This moisture-loving plant thrives in wet conditions and blooms from summer through early fall. It naturally occurs in wetlands, ditches, and other consistently moist areas.
In an HOA neighborhood
Dirty-dora takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Looks very weedy and informal
- Annual habit means seasonal gaps
- Requires consistently wet conditions
Wildlife value
This sedge provides seeds for waterfowl and small songbirds, particularly during fall migration. The dense growth offers shelter for small insects and amphibians in wet garden areas.
Common questions
- How much sun does Dirty-dora need?
- Dirty-dora grows best in full sun conditions.
- When does Dirty-dora bloom?
- Dirty-dora blooms in June, July, August, and September.
- Where is Dirty-dora native?
- Dirty-dora (Cyperus difformis) is native to AL, AZ, CA, FL and 19 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Dirty-dora HOA-friendly?
- Dirty-dora takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
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 Dirty-dora? 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