Cyperaceae
Carex oederi
Carex oederi
Also known as Onkerma oederi, Carex flava var. oederi, Carex flava subsp. orthorrhyncha, Trasus oederi
Native Plants · Sedge · Wetland · Part Shade · Groundcover · Moisture Loving · Perennial Grass · Native · Cool Climate · Cyperaceae · Marginal Plant
Oeder's sedge is a hardy, low-maintenance perennial that thrives in moist to wet soils in partially shaded spots such as pond margins or rain gardens. Keep the soil consistently moist and avoid letting it dry out completely. It requires very little intervention once established and naturalizes well in cool, temperate landscapes.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water thoroughly to keep soil evenly moist; avoid prolonged drying · Every 5-7 days or keep soil consistently moist
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 4.5–7.5
- Temperature
- -35°F to 85°F
- Cycle
- Perennial
- Propagation
- Division
Hardiness
USDA 3b-9b
Form & growth
Mature size and habit
- Mature height
- 6 in – 18 in
- Spread
- 12 in
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Shallow
- Flowers
- No
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alaska, Albania, Alberta, Altay, Austria, Azores, Baltic States, Belarus, Belgium, British Columbia, Bulgaria, California, Central European Rus, Colorado, Connecticut, Corse, Czechoslovakia, Denmark, East European Russia
Sources: trefle, usda
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