How much sun does Bottle Sedge need?

Bottle Sedge grows best in part sun conditions.

When does Bottle Sedge bloom?

Bottle Sedge blooms in May, June, and July.

Where is Bottle Sedge native?

Bottle Sedge (Carex rostrata) is native to ME, MI, MN, MT and 4 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Bottle Sedge toxic to livestock?

The USDA PLANTS Database does not flag Bottle Sedge as toxic to livestock.

Is Bottle Sedge HOA-friendly?

Bottle Sedge takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Bottle Sedge

Name: Pollinator Patch
Author: Pollinator Patch

Carex rostrata

Last reviewed: August 2026

Toxicity unknown

Bottle Sedge (Carex rostrata) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Bottle Sedge as toxic to livestock.

Light

part sun

Water

high

Size

12"–40" H × 8"–24" W

Bloom

May, Jun, Jul

Native to

ME, MI, MN, MT and 4 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Puget Lowland Northwestern Forested Mountains North American Deserts Northern Glaciated Plains Great Plains Northern Forests Northern Lakes and Forests North Central Hardwood Forests Southeastern Wisconsin Till Plains Southern Michigan/Northern Indiana Drift Plains Northeastern Highlands Northeastern Coastal Zone Acadian Plains and Hills

Bottle sedge is a clumping wetland grass that forms dense tufts of narrow green leaves. It thrives in consistently moist to wet soils and produces distinctive bottle-shaped seed heads in summer. This sedge is best suited for rain gardens, pond edges, or other water-retention areas.

In an HOA neighborhood

Bottle Sedge takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Requires consistently wet conditions that are unusual in typical landscapes
Can appear unkempt and weedy to those unfamiliar with native sedges
May spread aggressively in ideal wet conditions

Wildlife value

The dense clumps provide nesting habitat and cover for waterfowl and small birds. Seeds are eaten by various songbirds and waterfowl.

Common questions

How much sun does Bottle Sedge need?: Bottle Sedge grows best in part sun conditions.
When does Bottle Sedge bloom?: Bottle Sedge blooms in May, June, and July.
Where is Bottle Sedge native?: Bottle Sedge (Carex rostrata) is native to ME, MI, MN, MT and 4 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Bottle Sedge toxic to livestock?: The USDA PLANTS Database does not flag Bottle Sedge as toxic to livestock.
Is Bottle Sedge HOA-friendly?: Bottle Sedge takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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