• Photo of Carex pensylvanica (Carex pensylvanicas)

Plant Profile: Carex pensylvanica

Taxonomy: Carex pensylvanica

Names

Oak Sedge, Pennsylvania Sedge, Plantainleaf Sedge, Rush, Sedge, Sedges, Seersucker Sedge

  • Photo of Carex pensylvanica (Carex pensylvanicas)

Phonetic Spelling:KAIR-eks pen-sill-VAN-ee-ka

Genus:Carex

Species:pensylvanica

Family:Cyperaceae

Pennsylvania sedge is indigenous to thickets and dry woodlands across North America. Often found in proximity to oak trees, it is commonly referred to as "oak sedge." This plant tends to grow in loose clusters and features a creeping growth pattern, characterized by its reddish-brown roots. While it can endure heavy shade and moist soil, it thrives best in dry, shaded environments. Pennsylvania sedge serves as an excellent alternative to traditional lawns, although it does not withstand heavy foot traffic well. In dry shade areas, it can create a desirable turf that requires mowing only once or twice per season to maintain a height of about 2 inches. Additionally, it works well as an underplanting for taller perennial plants. This sedge is semi-evergreen, retreating in extremely cold temperatures. However, distinguishing between individual species of sedge (Carex) can be quite challenging.

In terms of pests and diseases, Pennsylvania sedge may occasionally face issues such as smut, rust, and leaf spot, along with infestations from aphids, anthracnose, and fungus gnat larvae.

Carex pensylvanica Feature Summary

Carex pensylvanica Image Gallery

Tags

#rain garden
#perennial
#semi-evergreen
#wildlife plant
#lawn alternative
#erosion control
#wet sites
#cpp
#NC native
#native ornamental grass
#larval host plant
#food source summer
#food source herbage
#native sedge
#dry soils tolerant
#food source hard mast fruit
#butterfly friendly
#HS302
#pollinator garden
#rushes
#audubon
#heavy shade tolerant
#various satyr butterfly

Similar Plants

Carex pensylvanica Feature Summary

Attributes
Central & E. Canada to N. Central & E. U.S.A
This plant supports various Satyr larvae.
Perennial
Fruit
Displays from May to June.
Flowers
Flowers bloom from April to May. Plants are monoecious, male flowers appear in spiklets above the female flowers. Inflorescences are at the tip of rough, triangular stems. Staminate scales are green with reddish-purple with white margins. Pistillate scales are dark brown to purple-black with green midribs and white margins.
White
Red/Burgundy
Green
Cream/Tan
Whole Plant Traits
Perennial
Ground Cover
Ornamental Grasses and Sedges
Spreading
Clumping
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Deep shade (Less than 2 hours to no direct sunlight)
Moist
Occasionally Dry
Less than 12 inches
Mountains
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
3a
3b
High Organic Matter
Sand
Landscape
Butterfly Garden
Pollinator Garden
Rain Garden
Mass Planting
Drought
Deer
Insect Pests
Wet Soil
Erosion
Heavy Shade
Butterflies
Pollinators
Songbirds
Small Mammals

Carex pensylvanica Attributes

Carex pensylvanica: Country Or Region Of Origin

Central & E. Canada to N. Central & E. U.S.A

Carex pensylvanica: Wildlife Value

This plant supports various Satyr larvae.

Carex pensylvanica: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Carex pensylvanica: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Carex pensylvanica Fruit

Carex pensylvanica: Fruit Description

Displays from May to June.

Carex pensylvanica: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Carex pensylvanica: Display/Harvest Time

Fall
Spring
Summer
Winter

Carex pensylvanica Flowers

Carex pensylvanica: Flower Description

Flowers bloom from April to May. Plants are monoecious, male flowers appear in spiklets above the female flowers. Inflorescences are at the tip of rough, triangular stems. Staminate scales are green with reddish-purple with white margins. Pistillate scales are dark brown to purple-black with green midribs and white margins.

Carex pensylvanica: Flower Color

filter_vintage
Cream/Tan
filter_vintage
Green
filter_vintage
Red/Burgundy
filter_vintage
White

Carex pensylvanica: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Carex pensylvanica: Flower Bloom Time

Winter
Spring
Summer
Fall

Carex pensylvanica Whole Plant Traits

Carex pensylvanica: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Carex pensylvanica: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Carex pensylvanica: Maintenance

Low
Medium
High

Carex pensylvanica: Texture

Fine
Medium
Coarse

Carex pensylvanica Cultural Conditions

Carex pensylvanica: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Carex pensylvanica: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Carex pensylvanica: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Carex pensylvanica: NC Region

Coastal
Mountains
Piedmont

Carex pensylvanica: USDA Plant Hardiness Zone

thermostat
3a
thermostat
3b
thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Carex pensylvanica: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Carex pensylvanica Leaves

Carex pensylvanica: Leaf Color

spa
Green

Carex pensylvanica: Deciduous Leaf Fall Color

spa
Gold/Yellow

Carex pensylvanica: Hairs Present

No
Yes

Carex pensylvanica: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Carex pensylvanica: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Carex pensylvanica: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Carex pensylvanica Stem

Carex pensylvanica: Stem Is Aromatic

No
Yes

Carex pensylvanica Landscape

Carex pensylvanica: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Carex pensylvanica: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Carex pensylvanica: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Carex pensylvanica: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Carex pensylvanica: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees