Thymus serpyllum, commonly known as Creeping Thyme, is a low growing, aromatic groundcover that brings fine texture and seasonal color into the landscape. It’s a popular choice for filling in spaces while maintaining a natural, cohesive look.

The foliage is made up of small, fragrant green leaves that form a dense, spreading mat. When brushed or stepped on, it releases a pleasant herbal scent, adding a subtle sensory element.

In late spring to early summer, it produces a blanket of small pink to lavender flowers that rise just above the foliage. The blooms can be quite showy when planted in mass, creating a soft wash of color.

It spreads steadily over time, making it ideal for planting between stepping stones, along borders, or as a lawn alternative in light traffic areas.

Thymus serpyllum grows best in full sun and requires well drained soil. Once established, it is drought tolerant and performs best in dry, lean conditions.

It typically stays around 2 to 4 inches tall and spreads outward to form a low, dense mat. It is well suited for USDA zones 4 through 9, however it is also seen thriving here in Southern California which is why we have included zone 10. The foliage is evergreen to semi evergreen depending on climate.

This plant has low toxicity and is generally safe for gardens with pets and children.

The flowers attract pollinators such as bees.

It is generally deer resistant.

Thymus serpyllum fits especially well into Mediterranean, rock garden, and cottage garden designs, where its texture and blooms can be used to soften edges and fill gaps.

It pairs well with plants like Lavandula x intermedia ‘Grosso’ to reinforce a classic Mediterranean palette, Dianthus gratianopolitanus to add complementary flowering color, and Sedum makinoi ‘Limelight’ to introduce a bright, low growing contrast.

Expert Tip:

Place this in full sun and lean soil, because it performs best in dry conditions and can become sparse in overly rich or moist environments. Light trimming after flowering will help maintain a dense, even carpet.  I used this between my stepping stones and it performs perfectly. 

— Nick from Rooted Theory