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Soft Rush

Juncus effusus

46
Good

Native to Louisiana (estimated). How scores work Is it native here?

Profile 100%

Height
About 6.6 feet
Spread
2–4 feet
Light
Full sun
Soil moisture
Usually moist

Space about 3 ft apart from its recorded spread, about 11 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
Summer
Fruiting season
Summer to fall

Not yet recorded · Leaves

Recorded in 59 Louisiana parishes.

Ecological relationships

Who uses this plant?

What these records mean

6CaterpillarsGenus host records with ranges including LA

Genus host records with ranges including LA · Juncus

  • Acronicta insularisHenry's Marsh Moth, Cattail Caterpillar
  • Bactra furfuranaRush Bactra
  • Bactra verutanaJavelin Moth
  • Cisseps fulvicollisYellow-Collared Scape Moth
  • Coleophora cratipennellaStreaked Coleophora
  • Thopeutis forbesellus
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
2BeesSoutheastern regional records

Southeastern regional records · Juncus

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
5BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Juncus

  • Alectoris chukarChukar
  • Anas acutaNorthern Pintail
  • Coturnicops noveboracensisYellow Rail
  • Lagopus leucuraWhite-tailed Ptarmigan
  • Plectrophenax nivalisSnow Bunting
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Juncaceae
Hardiness
Zones 4a–9b
Soil pH
Neutral
Flower color
Brown/copper or yellow
Growth rate
Moderate
Growth habit
Grows in clumps
Foliage color
Dark green
Fruit begins
Summer
Fruit ends
Fall

What its natural habitat tells you

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
  • Bloom · “Summer” · USDA PLANTS (ranked first; Prairie Moon 2026 Cultural Guide differs) · Nationwide species characteristics; local growing conditions may vary
  • Flower color · “Brown/copper or yellow” · NC Extension Plant Toolbox (ranked first; USDA PLANTS differs)
  • Foliage color · “Dark green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit begins · “Summer” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit ends · “Fall” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth habit · “Grows in clumps” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Hardiness · “Zones 4a–9b” · NC Extension Plant Toolbox (ranked first; Missouri Botanical Garden Plant Finder differs)
  • Height · “About 6.6 feet” · USDA PLANTS (ranked first; Missouri Botanical Garden Plant Finder, Prairie Moon 2026 Cultural Guide differ) · Nationwide species characteristics; local growing conditions may vary
  • Life cycle · “Perennial” · NC Extension Plant Toolbox
  • Light · “Full sun (6 or more hours of direct sunlight a day)” · NC Extension Plant Toolbox (ranked first; Virginia DCR Piedmont, Virginia DCR Coastal Plain, Missouri Botanical Garden Plant Finder, Prairie Moon 2026 Cultural Guide differ)
  • Soil · “Moist” · NC Extension Plant Toolbox (ranked first; Virginia DCR Piedmont, Virginia DCR Coastal Plain, Missouri Botanical Garden Plant Finder, Prairie Moon 2026 Cultural Guide differ)
  • Soil pH · “Neutral” · NC Extension Plant Toolbox
  • Spread · “2–4 feet” · Missouri Botanical Garden Plant Finder
Also known as

Common Rush; Lamp Rush

Conservation status

Louisiana rankSNR
Global rankG5
LA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources