trefle.io · Taken May 21, 2019 by margarida vila (cc-by-sa)
Juncaceae
Sharp rush
Juncus acutus
Also known as Pointed rush, Needle rush, Juncus acutus, Juncus acutus var. conglobatus
Zones 3–9Sun Full SunWater ModerateCare Low
Native Plants · Rush · Wetland · Bog · Erosion · Hardy · Water · Native · Perennial · Juncaceae · Marsh
Pet-safeBeginner-friendlyAttracts pollinators
Currently out of stock everywhereStock updated 9/6/2026
Sharp rush is an extremely hardy wetland plant that tolerates poor soils and wet conditions. Plant near water features or in boggy areas where other plants struggle. Requires minimal care once established and provides excellent erosion control.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Keep soil consistently moist but not waterlogged · Every 7-10 days
- Maintenance
- Low
- Soil
- peat
- Soil pH
- 7–7.5
- Temperature
- -40°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 3a-9b
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Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 2.5 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Shallow
- Flowers
- No
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Algeria, Argentina Northeast, Argentina Northwest, Argentina South, Arizona, Ascension, Azores, Baleares, Bermuda, Brazil South, California, Canary Is., Cape Provinces, Cape Verde, Chile North, Chile South, Corse, Cyprus, East Aegean Is.
- Attracts
- Birds
Sources: trefle, usda
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