Matted Sandmat
Euphorbia serpens
Last reviewed: August 2026
Matted 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, CO, FL and 17 more states
Pollinators
beetles, flies
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.
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Matted sandmat is a low-growing annual that forms dense, spreading mats close to the ground. This small native plant produces tiny flowers from summer through early fall and thrives in hot, dry conditions with minimal water needs.
In an HOA neighborhood
Matted 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 low profile can appear weedy
- Annual nature means gaps in coverage
- Common name includes 'mat' suggesting informal appearance
Wildlife value
The small flowers attract beetles and flies during the long blooming season from June through September.
Common questions
- How much sun does Matted Sandmat need?
- Matted Sandmat grows best in full sun conditions.
- When does Matted Sandmat bloom?
- Matted Sandmat blooms in June, July, August, and September.
- Where is Matted Sandmat native?
- Matted Sandmat (Euphorbia serpens) is native to AL, AR, CO, FL and 17 more states, per vouchered herbarium specimen records and regional native plant society lists.
- Is Matted Sandmat toxic to dogs?
- Yes. Matted 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 Matted Sandmat toxic to cats?
- Yes. Matted 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.
- What pollinators does Matted Sandmat attract?
- Matted Sandmat draws beetles and flies.
- Is Matted Sandmat HOA-friendly?
- Matted 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 Matted Sandmat and shows pet-safe natives for your ecoregion instead.
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