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Straggler Daisy

Calyptocarpus vialis

Also listed as Synedrella vialis, Blainvillea tampicana

Also known as Horseherb, Prostrate Lawnflower, Creeping Cinderella Weed

groundcover☀️ full sun💧 low water❄ Hardy: Zone 7a – Zone 11b

Climate Match for your location

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A low-growing, spreading groundcover with small yellow daisy-like flowers that bloom prolifically in warm months. Extremely drought-tolerant and heat-loving, it spreads rapidly along roadsides and disturbed areas.

Why grow it

Calyptocarpus vialis offers reliable groundcover performance in hot, dry sites where many conventional choices struggle, particularly in the southwestern and southern U.S. Its low stature and dense growth habit suppress weeds effectively without regular maintenance once established. Compared to other heat-loving groundcovers, it combines rapid coverage with minimal water needs and tolerance for poor soils typical of disturbed sites.

Watch out for

In areas with consistent summer moisture or high humidity, fungal issues may reduce vigor, so ensure good drainage and air circulation. The plant's vigorous spread means it benefits from defined borders in cultivated beds to prevent unwanted encroachment into neighboring plantings.

Overview

Form
Spreading
Growth Rate
fast
Size
0.25–1′ tall × 1–3′ wide
Dormancy
evergreen
Family
Asteraceae
EdibleMedicinalErosion controlPollinators & beneficial insects

Native Range

Tropical and subtropical Americas

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SummerFall

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Companion Planting

Plants well with