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Elfin Thyme

Thymus serpyllum (THY-mus ser-PIE-lum)

Family: Lamiaceae Unknown Groundcover (<1 ft)

Elfin Thyme is a miniature cultivar grown primarily as an ornamental groundcover, not as a culinary herb. It grows only 1-3 inches high and spreads to 1 to 1.5 feet. Preference is for full sun in sandy loam or rocky soils with good drainage. Tiny tubular pink flowers appear in summer that attract pollinators. Prune as needed to reduce an overabundance of woody stems. Use this plant to cascade over walls, between stepping stones, for edging border fronts, in containers, or rock gardens. It will tolerate light foot traffic. Insects, Diseases, and Other Plant Problems: No serious problems. It can suffer root rot on poorly drained soils. More information on Thymus serpyllum .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 50 attributes.

How it fits the guild

Guild layer 5 - Groundcover (<1 ft)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Ground Cover; Herbaceous Perennial
Life cycle
Perennial; Woody
USDA zones
4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Loam (Silt); Sand; Shallow Rocky
Soil drainage
Good Drainage | Occasionally Dry
Available space
Less than 12 inches; 12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 0 ft. 1 in. - 0 ft. 3 in. | Width: 1 ft. 0 in. - 1 ft. 6 in.
Growth rate
Slow
Maintenance
Low
Canopy layer
5 - Groundcover (<1 ft)
Form & Appearance
Habit / form
Creeping; Horizontal; Spreading
Texture
Fine
Foliage
Broadleaf Evergreen
Leaf color
Gray/Silver; Green
Leaf type
Simple
Leaf shape
Elliptical; Orbicular
Leaf margin
Entire
Leaf value
Fragrant
Leaf size
< 1 inch long, < 1 inch wide
Hairs present
Yes
Leaf detail
Tiny oval to round leaves are pubescent and slightly fragrant.
Flower color
Pink; Purple/Lavender
Flower value
Showy
Flower form
Head
Flower shape
Tubular
Flower size
< 1 inch
Flower detail
Tiny lavender-pink 4-petaled tubular flowers appear in summer.
Bloom time
Spring
Stem color
Brown/Copper
Stem detail
Woody stems with hairs
Wildlife & Ecology
Native status
Unknown
Attracts
Pollinators
Food & Medicine
Edible parts
Leaves

Edibility

Leaves are usable as a flavoring in cooking

Landscape Use
Landscape location
Container; Rock Wall; Slope/Bank; Small Space; Walkways
Landscape theme
Drought Tolerant Garden; Pollinator Garden; Rock Garden; Winter Garden
Design feature
Border
Garden tags
#stepping stones #rock garden #low growing #fragrant leaves #drought tolerant #groundcover #spreading #edging #purple flowers #evergreen #pollinator plant #Guilford Crevice Garden #garden walls #subshrub #woody perennial #border front #foot traffic tolerant #container plant #wet soils intolerant #sensory garden #small spaces #poor soil tolerant #walkway
Problems & Resistance
Resistant to
Drought; Foot Traffic

Planted at Hunnicutt

Nobody’s planted this one yet.