How much sun does Mossman River Grass need?

Mossman River Grass grows best in full sun conditions.

When does Mossman River Grass bloom?

Mossman River Grass blooms in June, July, August, and September.

Where is Mossman River Grass native?

Mossman River Grass (Cenchrus echinatus) is native to AL, AR, AZ, CA and 17 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Mossman River Grass HOA-friendly?

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

Mossman River Grass

Name: Pollinator Patch
Author: Pollinator Patch

Cenchrus echinatus

Last reviewed: August 2026

Toxicity unknown

Mossman River Grass (Cenchrus echinatus) 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.

Light

full sun

Water

low

Size

12"–36" H × 6"–24" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, AR, AZ, CA and 17 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 Southeastern Plains Southern Coastal Plain Southern Florida Coastal Plain Sonoran Basin and Range Southern California/Northern Baja Coast

Mossman river grass is a low-growing annual grass that forms compact clumps in sunny, dry locations. It produces seed heads during summer and fall months, then dies back completely in winter as an annual species.

In an HOA neighborhood

Mossman River Grass 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.

Dies completely each winter as annual
Seed heads can appear weedy or unkempt
May self-seed unpredictably

Wildlife value

This grass provides some habitat and potential food sources for small wildlife, though it lacks significant pollinator value since grasses are primarily wind-pollinated.

Common questions

How much sun does Mossman River Grass need?: Mossman River Grass grows best in full sun conditions.
When does Mossman River Grass bloom?: Mossman River Grass blooms in June, July, August, and September.
Where is Mossman River Grass native?: Mossman River Grass (Cenchrus echinatus) is native to AL, AR, AZ, CA and 17 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Mossman River Grass HOA-friendly?: Mossman River Grass 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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