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Thyme-leaved Speedwell

Veronica serpyllifolia

Also listed as Veronicastrum serpyllifolium, Cardia officinalis

Also known as Turf Speedwell, Thyme Speedwell

groundcover☀️ full sun💧💧 moderate water❄ Hardy: Zone 3a – Zone 8b

Climate Match for your location

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A low-growing groundcover with tiny thyme-like leaves and delicate pale blue to white flowers. It spreads readily and works well in rock gardens, lawns, and between pavers.

Why grow it

Veronica serpyllifolia offers finer texture and lower growth habit than many speedwell species, making it useful where a delicate groundcover is preferred over coarser alternatives. It tolerates poor soils and compaction better than most ornamental groundcovers, which can reduce establishment costs in challenging sites. The pale flowers and mat-forming growth suit rock gardens and between-paver situations where taller or more aggressive spreaders would be inappropriate.

Watch out for

This species can spread vigorously in favorable conditions and may outcompete desired plants if not monitored, particularly in loose or mulched beds. Performance varies significantly with drainage and moisture availability; in poorly drained sites it is prone to root rot and fungal issues. Mowing or foot traffic may be needed periodically to maintain density and prevent bare patches, depending on site conditions and use intensity.

Overview

Form
Spreading
Growth Rate
moderate
Size
0.25–0.5′ tall × 1–2′ wide
Dormancy
semi-evergreen
Family
Plantaginaceae
pollinator nectarywildlife benefit

Native to the United States

Native Range

Europe and Western Asia

Native to: Alaska, Alabama, Arkansas, Arizona, California, Colorado, Connecticut, District of Columbia, Delaware, Georgia, Iowa, Idaho, Indiana, Kansas, Kentucky, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, Montana, North Carolina, North Dakota, New Hampshire, New Jersey, New Mexico, Nevada, New York, Ohio, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Utah, Virginia, Vermont, Washington, Wisconsin, West Virginia, Wyoming

Seasonality

Bloom Season

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

Season of Interest

SpringSummer

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Companion Planting

Plants well with