HerbThyme
Creeping Thyme
Ground Cover Thyme
Creeping Thyme (Thymus serpyllum) is a cold-hardy perennial ground cover that thrives in zones 5 and spreads across the garden in dense, fragrant mats. This low-growing herb reaches just 6 to 8 inches tall but spreads 10 to 12 inches wide, making it perfect for filling spaces between pavers and stepping stones while shrugging off drought and neglect. Harvest leaves after about 90 days for culinary use, or simply let it bloom from spring through summer with delicate lavender-rose flowers that draw pollinators. Its silver-green foliage carries an earthy, floral flavor reminiscent of rosemary, and it's fully hardy enough to return year after year even in cold climates.
Photo © True Leaf Market
Growing Conditions
USDA Zone
5-5
Sunlight
Full Sun
Water
Low
Soil
Well-drained, Sandy Or Gravelly Soil; Tolerates Poor Soil
Preferred Temp50-75°F
Growth Stats
8 in
Height
12 in
Width
12 in
Spacing
90–90
Days to Harvest
PeriodPerennial
TypeCreeping
Plant Profile
Sunlight
Full Sun
Water
Low
Zones
5-5
Size
8in H x 12in W
Growth
Perennial
Care
Moderate
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Highlights
This evergreen perennial is as tough as they come, thriving in full sun with minimal water once established and showing strong resistance to Downy Mildew. The real draw is its dual personality: it's a strikingly ornamental ground cover with charming blooms, but also a fully edible culinary herb that works in stews, dressings, and roasted dishes just like standard thyme. Deer leave it alone, pollinators adore it, and it tolerates the kind of neglect and dry conditions that send other plants into decline.
Common Uses
Creeping Thyme works in the kitchen much like any thyme variety. Use it fresh or dried in stews, add it to salad dressings, scatter it over roasted vegetables, or infuse it into oils and vinegars. Beyond the kitchen, it excels as a living mulch between pavers and stepping stones, as a fragrant ground cover in sunny borders, and as an evergreen filler that suppresses weeds while creating a soft mat of foliage. The flowers are edible and attractive to bees, making it a functional ornament in pollinator gardens.
Growing Timeline
First Bloom
Spring
First Harvest
Early Summer
Last Harvest
Late Summer
Variety Details
Main Season
Summer/fall HarvestCare Instructions
Start Indoors
Sow indoors in late winter in a container of seed starting mix, keeping soil at around 68°F. Cover seeds very lightly and maintain even moisture without waterlogging until seedlings emerge in 14 to 21 days. Provide a strong light source to prevent leggy growth before transplanting to the garden.
Transplant Outdoors
After the last frost, transplant seedlings outdoors in spring once soil has warmed. Space plants 12 inches apart in full sun with excellent drainage. Thin or transplant early in the season while plants are small, then keep the area weeded until plants fill in and establish their spreading habit.
Direct Sow
Direct sow in mid-spring after soil has warmed, sowing very thinly on a finely textured seedbed in full sun. Cover seeds lightly and maintain even moisture while seeds germinate. Keep the seedbed weed-free as young plants develop.
Harvesting
Begin harvesting leaves once plants are established, roughly 90 days after sowing. For culinary use, pinch off the top 2 to 3 inches of stems as needed throughout the growing season. For drying, harvest at peak maturity when leaves are lush and green, or harvest when blooms are just beginning to appear if you want maximum essential oil content. Hang small bunches upside down in a dry, warm location (80 to 90°F) with good air circulation for 1 to 2 weeks until fully dry.
Pruning
Trim creeping thyme after it flowers to encourage denser growth and prevent the mats from becoming woody or sparse in the center. Light shearing with hedge shears works well for maintaining a tidy appearance. Since it's evergreen, you can prune lightly throughout the growing season as needed, and the plant will fill back in quickly.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Deer ResistantDrought TolerantAttracts PollinatorsEdible
Bloom Time
Spring To Summer
Scientific Classification
Thymus L.
Family
Lamiaceae
Genus
Thymus
Duration
Perennial
Growth Habit
Vining
History & Origin
“Creeping Thyme, scientifically known as Thymus serpyllum, earned the common name 'Mother-of-Thyme' because it's one of the foundational thyme species from which many culinary varieties have descended. This heirloom perennial has been cultivated across Europe for centuries, prized both as a medicinal plant and a fragrant ground cover in cottage gardens. Its resilience in harsh conditions and ability to spread naturally across rocky, dry terrain made it a reliable choice for gardeners with challenging sites long before the modern era of heavy watering and soil amendments.”