lamp rush
Juncus effusus
USDA zones3 to 9
SunHandles full sun to partial shade
WaterHandles moderate to wet soil
Size2 to 4 feet tall2 to 4 feet wide
- Growth rate
- Moderate
- Habit
- Grass/grass-like
- Bloom season
- Spring, summer, autumn, winter
- Bloom color
- Yellowish-green
- Foliage color
- Dark green
- Soil types
- Sand, loam, clay
- Soil pH
- Acid, neutral
Garden uses
Attracts
Notes
Lamp rush (Juncus effusus) is a grass for rain gardens, containers, accents, and low maintenance beds. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full sun to part shade and average to wet, sandy, loamy, or clay soil. It is not a favorite of deer, though hungry deer will eat almost anything. Birds find shelter among the evergreen stems, and its rhizomes can spread, so grow it in a tub.
Pairs well with Pickerel weed, Swamp milkweed, and Royal fern.
Native range
Eurasia, North America, Australia, and New Zealand.