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Carex platyphylla

A small, grasslike plant found in shady spots under trees, Broadleaf Sedge sets itself apart from other sedges with its wide leaves. Just under a foot tall, this moderately deer resistant perennial can be used as a groundcover or a border in a woodland garden given it is not walked on, as it doesn’t do well with foot traffic. White to green flower spikes presenting in spring are insignificant, and this plant is often grown for the handsome blue tinted leaves that are displayed all year. These leaves provide cover for small animals, and the seeds are enjoyed by songbirds and small mammals alike. Growing under trees in woodlands where leaf litter builds up over time, Broadleaf Sedge thrives in soil with high organic matter that stays moist. Once it has had time to get established, it can be drought resistant given it is growing where it has respite from the harsh sun. This plant is a host to caterpillars of Satyr butterflies.

Key Info

Scientific Name: Carex platyphylla
Common Names: Broadleaf Sedge, Silver Sedge
Family Names:
Protected Plant Species: No
Light Requirement: ,
Moisture Requirement:
Leaf Retention:
Bloom Times: , ,
Flower Color: White, green, brown
Special Characteristics: ,

Additional Info

Habit: Clumping
Height: 8-12"
Spread: 1-1'6"
Soil Conditions: Acidic to neutral soil with high organic matter.
Leaves: Showy, linear, simple leaves are glossy with smooth margins. Leaves may have bluish hue in low light. Leaves are wider than most Carex species.
Flowers (or reproductive structures: Small spikes in spring
Fruit: May-July
USDA Hardiness Zone: 4-8
USDA Wetland Indicator Status in NC: Not classified.
Wildlife Connections: Host for Satyr larvae and cover for wildlife. Small mammals and birds eat the seeds.
Propagation: Division, seed