Juncus roemerianus (Black needlerush)

Cultivation

Thrives in moist, acid to neutral, coastal sites in full sun. Do not allow to dry out. Salt and flood tolerant. Suitable for salt marsh restoration. Plants will be taller in low salinity soil, approx. 30 cm tall in high salinity soils. Compact plants are genetically adaptable to high soil salinity. Larger plants lack this adaptability and will die if transplanted to high saline conditions.

Suggested uses

Waterside, Bog garden, Aquatic, Coastal, Wildlife, Banks and Slopes

UK hardiness

H4

USDA zones

Zone 8, Zone 9, Zone 10

Sunset zone

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Evergreen

Habit

Upright, Clump-forming

Native to

Southeastern United States, Caribbean

Drought tolerant

No

Flood tolerant

Yes

Toxicity

Not toxic