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Annual Dropseed

Sporobolus neglectus

Last reviewed: September 2026

Annual Dropseed (Sporobolus neglectus)
Photo: (c) Ljaž, some rights reserved (CC BY)

Toxicity unknown

Annual Dropseed (Sporobolus neglectus) 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

6"–24" H × 4"–12" W

Bloom

Jul, Aug, Sep

Native to

AL, AR, AZ, CA and 33 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

Annual dropseed is a small native grass that forms compact clumps and produces delicate, airy seed heads in summer. This drought-tolerant species thrives in sunny, dry locations and completes its lifecycle in one growing season.

In an HOA neighborhood

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

Works well in: backyard only.

  • Dies completely each year leaving bare spots
  • Can appear weedy and unkempt
  • Unpredictable germination creates patchy appearance

Wildlife value

The seeds provide food for small birds and the grass offers shelter for beneficial insects during its growing season.

Common questions

How much sun does Annual Dropseed need?
Annual Dropseed grows best in full sun conditions.
When does Annual Dropseed bloom?
Annual Dropseed blooms in July, August, and September.
Where is Annual Dropseed native?
Annual Dropseed (Sporobolus neglectus) is native to AL, AR, AZ, CA and 33 more states, per the World Checklist of Vascular Plants (Kew).
Is Annual Dropseed HOA-friendly?
Annual Dropseed 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 the World Checklist of Vascular Plants (Kew). 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 Annual Dropseed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz