Thymus serpyllum
herbMother of Thyme (Thymus serpyllum), also called creeping thyme or wild thyme, is a low, mat-forming perennial that hugs the ground at just 2 to 4 in. tall while spreading 12 in. or more wide. Its tiny aromatic evergreen leaves release the classic thyme scent when brushed or stepped on, and in early summer the mats disappear under a haze of small pink to rose-purple flowers that bees swarm. It is equally a culinary thyme and a tough living groundcover for paths, rock gardens, walls, and the gaps between stepping stones, tolerating light foot traffic and shrugging off heat and drought once established.
Sun
full sun
Water
Every 10 days
Harvest
~90 days
Difficulty
easy
Lifecycle
perennial
Comes back every year
Spacing
8-12 in. apart
Planting Depth
Surface to barely covered
Soil pH
6.0-8.0
Soil Type
Lean, gritty, well-draining
Hardiness Zones
Zones 4 – 9
When to Fertilize
None - lean soil keeps flavor strong
Fertilizer
None; never enrich
Plant creeping thyme in full sun in lean, gritty, sharply drained soil; it thrives in poor rocky ground and rots in rich, wet soil. Space plants 8 to 12 in. apart and they will knit together into a solid mat. Water to establish, then it is highly drought-tolerant and needs little care. Shear the mats lightly after flowering to keep them dense and tidy. It tolerates light foot traffic, making it ideal between pavers. Divide or take cuttings to spread it, and avoid fertilizing, which produces soft growth and weaker flavor and fragrance.
Start seeds indoors
Feb 18
Transplant outdoors
Apr 15
Projected first harvest
Jul 14
Good neighbors that attract beneficial insects or deter pests
Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide
The main threat - plant only in sharply drained, lean soil and never let the mats sit in wet ground, especially over winter
Appear in hot, dry, stressed conditions - light watering during extreme drought and shearing congested growth help
Rarely serious; hose off the occasional colony and let predators handle the rest
Snip sprigs of creeping thyme anytime through the season; flavor is most concentrated just before the plant flowers. Strip the tiny leaves from the wiry stems for cooking, or add whole sprigs to dishes and remove the stems before serving. It dries and freezes well - hang small bundles in a warm airy spot, then strip and store the leaves. The edible flowers can also be scattered over dishes as a fragrant garnish.
Mother of Thyme is grown mainly as an ornamental groundcover, but its small leaves are edible and can be used like common thyme to season soups, stocks, roasts, vegetables, and herb blends, with a slightly milder flavor. As a groundcover it doubles as one of the best bee plants in the garden - its early-summer flowers are an important nectar source, and traditional thyme honey comes from related wild thymes.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.