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Toad Rush

Juncus bufonius

Last reviewed: June 2026

Juncus bufonius (Toad Rush) is a small native grass-like plant found across most US states that blooms May through September in wet to moderately moist soils.

Toad Rush (Juncus bufonius)
Photo: (c) Mehdi Chetibi, some rights reserved (CC BY), uploaded by Mehdi Chetibi

The USDA PLANTS Database (opens in new tab) does not flag Toad Rush as toxic to livestock.

Light

part shade

Water

medium

Size

2"–10" H × 2"–6" W

Bloom

May, Jun, Jul, Aug, Sep

Native to

AL, AR, AZ, CA and 38 more states

Browse plants for this ecoregion

Coast RangeSierra NevadaCentral California ValleyCentral California Foothills and Coastal MountainsSouthern California MountainsCentral Basin and RangeMojave Basin and RangeChihuahuan DesertsCentral Oklahoma/Texas PlainsEdwards PlateauTexas Blackland PrairiesEast Central Texas PlainsWestern Gulf Coastal PlainSouth Central PlainsSonoran Basin and Range

Toad rush is a small, delicate annual grass-like plant that grows in low tufts with thin, thread-like leaves. It produces tiny, inconspicuous greenish-brown flowers from late spring through fall and thrives in moist, partially shaded areas.

Growing Toad Rush

Grow Toad Rush in part shade and medium water. Mature plants reach 2 to 10 inches tall and spread 2 to 6 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Toad Rush takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • Very weedy appearance year-round
  • Dies back completely as annual
  • Extremely small and sparse growth habit

Wildlife value

This plant provides seeds for small birds and serves as habitat for various insects, though it is not a significant pollinator plant due to its wind-pollinated flowers.

Common questions

Where does Toad Rush naturally grow in the United States?
Toad Rush is native to most US states including Alabama, Arizona, California, Colorado, Florida, Illinois, Minnesota, Montana, New York, Oregon, Texas, Washington, and many others across diverse climate zones.
When does Juncus bufonius bloom?
Toad Rush blooms from May through September, producing small inconspicuous flowers during the growing season.
What growing conditions does Toad Rush prefer?
This rush thrives in wet to medium moisture soils and can tolerate full sun to partial shade conditions, making it adaptable to various wetland and disturbed site conditions.
Is Toad Rush actually a grass?
No, despite its grass-like appearance, Juncus bufonius is a rush in the family Juncaceae, not a true grass. Rushes typically have round stems while grasses have flat leaves and hollow stems.
Is Toad Rush toxic to livestock?
The USDA PLANTS Database does not flag Toad Rush as toxic to livestock.
Is Toad Rush HOA-friendly?
Toad Rush 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 Toad Rush? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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