Spotted Spurge

Euphorbia maculata

Easy · Beginner friendly

About Spotted Spurge

Spotted Spurge or Spotted Sandmat is a native North American warm-season annual with tiny leaves marked with a dark central red-purple spot, forming flat prostrate mats with milky white sap. Invades lawns, gardens, driveways, and pavement cracks nationwide, especially thriving in compacted sandy soil and summer heat. A universal summer lawn weed with irritating sap.

Heat-tolerant
Native

WATER

Regular

Top inch dry

LIGHT

Full sun

6+ hrs direct

HARDY

Hardy to -30°F (-34°C)

USDA hardiness zones 4–11

How to care for Spotted Spurge

Watering

Springevery 14 days
Summerevery 7 days
Fallevery 14 days
Winterpause watering

Soil · Fast-draining

Main mixSand + pumice + soil 1:1:150%
DrainagePumice / gravel50%

Keep grit at half the mix or more — this soil is meant to dry out fast.

FERTILIZER

This plant needs little to no feeding.

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At a Glance

NativeNorth America
Height0.2–0.5 ft (0.1–0.2 m)
Spread0.5–1.5 ft (0.2–0.5 m)
Flower colorWhite, Pink
Foliage colorGreen, Purple
Fruit colorBrown
SoilSandy, Well-drained
LocationsYard

Bloom time

BLOOM CYCLE

Peak bloom

Jun–Nov

Tiny inconspicuous flowers summer to frost

Toxicity

Humans Moderate · Pets Slight

diterpene esters and phorbol-like compounds

HumansDogsCats

Moderate

All
Contact

EXPOSURE Touching any part of the plant.

EFFECT Skin rash and severe eye irritation from latex sap.

NOTE Documented concern for humans: Skin rash and severe eye irritation from latex sap.

Slight

All
Ingestion
Contact

EXPOSURE Eating any part of the plant. Touching any part of the plant.

EFFECT Drooling, vomiting, and oral irritation.

NOTE ASPCA lists Euphorbia as toxic to dogs and cats. Sap can cause severe eye injury — wash immediately if exposure occurs.

Slight

All
Ingestion
Contact

EXPOSURE Eating any part of the plant. Touching any part of the plant.

EFFECT Drooling, vomiting, and oral irritation.

NOTE ASPCA lists Euphorbia as toxic to dogs and cats. Sap can cause severe eye injury — wash immediately if exposure occurs.

Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.

DISTRIBUTION

Native
Introduced

North America

History

Illustrated historical scene for Spotted Spurge

Euphorbia maculata is native to eastern North America and has spread globally as a warm-season summer-annual weed. Linnaeus described it in Species Plantarum (1753); the epithet maculata ('spotted') refers to the conspicuous purple blotch on each leaf. It is sometimes taxonomically merged with E. supina or considered a subspecies, but most modern treatments keep it distinct.

It forms prostrate mats to 30 cm across of small red-stemmed leaves with tiny white flowers, thriving in sun-baked driveways, sidewalk cracks, and stressed lawns. All parts exude sticky white latex when broken, containing irritating diterpene esters that can cause contact dermatitis and painful eye inflammation — gardening gloves are recommended when hand-weeding. Cherokee peoples used the latex sparingly on warts and skin fungal infections.

Despite the sap irritation, it is considered only mildly toxic to pets compared to many other Euphorbia. Native to eastern and central North America, spread with human disturbance to become a universal summer weed across the continent and naturalized globally. One of the most common summer weeds in American thin lawns, sandy driveways, and pavement cracks, tolerating brutal heat and compacted soil.

Symbolism & meaning

What It Symbolizes

Spotted Spurge claims summer pavement, thriving in sidewalk cracks and driveway edges where heat radiates upward and rain runs off quickly. Its small leaves wear a distinctive red-purple central spot, a tidy little signature against pale concrete. The plant itself is largely a weed, but its persistence is a small ecological observation about who actually colonizes our hot, hard places.

Summer pavement — thrives in sidewalk cracks and driveway edges
Spotted leaf — distinctive red-purple central leaf spot

Where the Name Comes From

'Euphorbia' honors Euphorbus, 1st-century Greek physician; 'maculata' from Latin means spotted, for the dark leaf spots.

Related plants

More Euphorbia plants

Plants with similar care

Frequently asked questions

How often should I water Spotted Spurge?

Water about every 14 days during the growing season, and always let excess water drain away.

How much light does Spotted Spurge need?

Full sun: 6+ hrs direct. Watch the leaves — scorching or stretching means the light needs adjusting.

Is Spotted Spurge toxic to cats or dogs?

Pets Slight (Dogs Slight · Cats Slight) Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.

Is Spotted Spurge easy to grow?

Yes — it is considered an easy, beginner-friendly plant.

When does Spotted Spurge bloom?

It typically blooms Jun–Nov in the Northern Hemisphere.

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