Prostrate Sandmat
Euphorbia prostrata
Last reviewed: August 2026
Prostrate Sandmat is toxic to dogs and cats.
Listed as toxic by the NC State Extension Gardener Plant Toolbox (opens in new tab) (last reviewed 2026-08-20). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435and your veterinarian's emergency line.
Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.
Light
full sun
Water
low
Size
2"–8" H × 4"–12" W
Bloom
Jun, Jul, Aug, Sep
Native to
AL, AR, AZ, CO and 13 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 areaBrowse plants for this ecoregion
Prostrate sandmat is a low-growing native annual that forms a dense mat close to the ground. This small wildflower blooms from summer through early fall with tiny inconspicuous flowers and thrives in poor, dry soils where other plants struggle.
In an HOA neighborhood
Prostrate Sandmat 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.
- Very small and inconspicuous appearance may look like weeds
- Low mat-forming growth habit lacks visual impact
- Annual nature means gaps and bare spots each year
Wildlife value
While specific pollinator data is limited, this plant likely supports small native bees and other tiny beneficial insects during its extended blooming period.
Common questions
- How much sun does Prostrate Sandmat need?
- Prostrate Sandmat grows best in full sun conditions.
- When does Prostrate Sandmat bloom?
- Prostrate Sandmat blooms in June, July, August, and September.
- Where is Prostrate Sandmat native?
- Prostrate Sandmat (Euphorbia prostrata) is native to AL, AR, AZ, CO and 13 more states, per vouchered herbarium specimen records and regional native plant society lists.
- Is Prostrate Sandmat toxic to dogs?
- Yes. Prostrate Sandmat is listed as toxic to dogs by the NC State Extension Gardener Plant Toolbox (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
- Is Prostrate Sandmat toxic to cats?
- Yes. Prostrate Sandmat is listed as toxic to cats by the NC State Extension Gardener Plant Toolbox (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
- Is Prostrate Sandmat HOA-friendly?
- Prostrate Sandmat 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.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Pollinator Patch flags toxic plants like Prostrate Sandmat and shows pet-safe natives for your ecoregion instead.
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