How much sun does Swamp Sawgrass need?

Swamp Sawgrass grows best in full sun conditions.

When does Swamp Sawgrass bloom?

Swamp Sawgrass blooms in June, July, August, and September.

Where is Swamp Sawgrass native?

Swamp Sawgrass (Cladium mariscus) is native to AL, AR, AZ, CA and 11 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Swamp Sawgrass toxic to livestock?

The USDA PLANTS Database does not flag Swamp Sawgrass as toxic to livestock.

Is Swamp Sawgrass HOA-friendly?

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

Swamp Sawgrass

Name: Pollinator Patch
Author: Pollinator Patch

Cladium mariscus

Last reviewed: August 2026

Toxicity unknown

Swamp Sawgrass (Cladium mariscus) 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 Swamp Sawgrass as toxic to livestock.

Light

full sun

Water

high

Size

36"–120" H × 24"–60" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, AR, AZ, CA and 11 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

Central California Foothills and Coastal Mountains Mojave Basin and Range North American Deserts Arizona/New Mexico Mountains Chihuahuan Deserts Edwards Plateau Western Gulf Coastal Plain Middle Atlantic Coastal Plain Southeastern Plains Mississippi Alluvial Plain Southern Coastal Plain Southern Florida Coastal Plain Sonoran Basin and Range Southern California/Northern Baja Coast

Swamp sawgrass is a tall, robust native grass that forms large clumps in wetland areas. This evergreen perennial can reach up to 10 feet tall and produces brownish flower clusters during summer and fall. It requires consistently moist to wet soil conditions and thrives in full sun locations.

In an HOA neighborhood

Swamp Sawgrass 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.

Extremely tall and can appear wild or unkempt
Sharp-edged leaves pose safety concerns near walkways
Wetland appearance may seem inappropriate for residential landscaping

Wildlife value

This grass provides nesting material and shelter for waterfowl and marsh birds. The seeds attract various wetland birds, and the dense clumps offer cover for small wildlife in aquatic environments.

Common questions

How much sun does Swamp Sawgrass need?: Swamp Sawgrass grows best in full sun conditions.
When does Swamp Sawgrass bloom?: Swamp Sawgrass blooms in June, July, August, and September.
Where is Swamp Sawgrass native?: Swamp Sawgrass (Cladium mariscus) is native to AL, AR, AZ, CA and 11 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Swamp Sawgrass toxic to livestock?: The USDA PLANTS Database does not flag Swamp Sawgrass as toxic to livestock.
Is Swamp Sawgrass HOA-friendly?: Swamp Sawgrass 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

Ready to grow Swamp Sawgrass? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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