Nodding Onion Gardens

Native Plant Nursery

Where Wildflowers Grow

Columbia Station, Ohio, USA


Carex bicknellii - Copper-shouldered Oval Sedge

Bicknell's Sedge or Prairie Sedge

 Carex bicknellii  -
Carex bicknellii - Lifestyle Landscaping

Ohio Native Plant - Natural Range

Carex bicknellii

Visit the USDA Natural Resource Conservation Services website to view the natural range of Carex bicknellii
Ohio Division of Natural Areas & Preserves indicates Carex bicknellii as Threatened in the state of Ohio

 Carex bicknellii
Carex bicknellii - Image Prairie Moon Nursery

Seed Provenance - Carex bicknelli -

Prairie Moon Nursery 2018

Cultivation Information - Carex bicknellii

Height -
1 to 2 ft
Blooms - 
April to July
Sun -
Full to part shade
Hardy Zone - 3 to 7

Soil - Dry to moist - versatile handles dry locations as well as rain-gardens

Mulch - Use as "living mulch" in between forbs

Erosion - A useful in redusing soil erosion

Cool temperature sedge - Majority of growth occurs in the spring and fall when temperatures are cooler

Provides - Seasonal color, texture and natural spacing to the landscape also creates natural support for delicate wildflowers.

- Sedge (Cyperaceae)

Wildlife Significance

Host - Large number of grasshoppers, caterpillars of skippers and moths

Source of -
Nesting Material and shelter for birds, insects and small mammals.

Pollination - Wind

Seed - For songbirds, ducks, wild turkeys and small mammals

Deer - Resistant to deer browsing

For detailed information visit the Illinois Wildflower website

Propagation Notes

Stratification - Cold moist storage in refrigerator  - baggie (recycled bag) for 60 days

Planted - January 2, 2019
Growth Noted - January 14, 2019

House temperature - 65 °F day/ Moved to cooler room 62°F at night

*Germinating Carex
  1. Cold moist stratification 60 days
  2. alternating soil temperature 50°F daytime/70°F nighttime) after sowing
  3. perigynium(fruit) of the sedge is exposed to light -
  4. Light speeds germination