trefle.io · CC-BY-SA
Cyperaceae
Carex rotundata
Carex rotundata
Also known as Carex rotundata f. viridis, Carex ruesanensis, Carex rostrata subsp. rotundata, Onkerma rotundata
Zones 4–9Sun Partial SunWater ModerateCare Moderate
Native Plants · Sedge · Cold-Hardy · Perennial · Northern · Moisture-Loving · Shade-Tolerant · Naturalized · Arctic
Pet-safeAttracts pollinators
Currently out of stock everywhereStock updated 9/6/2026
Round-fruited sedge is adapted to cold northern climates and prefers moist, well-draining soil in partial shade. It's extremely cold hardy but requires consistent moisture during growing season. Ideal for naturalized plantings in cooler regions.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Maintain consistent soil moisture without waterlogging · Every 5-7 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 5.5–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4a-9b
12345678910111213
Form & growth
Mature size and habit
- Mature height
- 12 in – 2.5 ft
- Spread
- 18 in
- Spacing
- 6 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alaska, Amur, East European Russia, Finland, Kamchatka, Khabarovsk, Korea, Krasnoyarsk, Kuril Is., Labrador, Magadan, Manitoba, North European Russi, Northwest Territorie, Norway, Nunavut, Primorye, QuéBec, Sakhalin, Sweden
- Attracts
- Birds
Sources: trefle, usda
More Carex
Related plants from the same genus
Buy this plant
No nurseries currently list it
No nursery lists Carex rotundata right now.