White creeping thyme (Thymus serpyllum ‘Albus’) is a low-growing perennial known for its mat-forming habit. It typically reaches 1 to 2 inches in height, spreading to create a dense carpet of tiny, bright green leaves. During summer, it produces abundant clusters of small, pure white flowers. The foliage is aromatic, releasing a pleasant scent when crushed or walked upon.
Planting White Creeping Thyme
White creeping thyme thrives in full sun, requiring at least six hours of direct sunlight daily. While it tolerates some light shade, optimal blooming and dense growth occur in bright conditions. The soil needs to be well-draining, as the plant is susceptible to root rot in overly wet conditions. Sandy or loamy soils are suitable, with an ideal pH range of 6.0 to 8.0.
Before planting, prepare the soil by incorporating coarse sand or fine gravel, especially in areas with questionable drainage. This helps ensure proper water flow away from the plant roots. The best time to plant is in early spring after the last frost, or in early fall before the first hard frost. Planting during these cooler periods allows the plant to establish its root system before extreme temperatures.
White creeping thyme can be planted from seeds, plugs, or divisions. When planting nursery starts or plugs, space them 6 to 12 inches apart to allow for spread. For a denser ground cover, closer spacing encourages quicker establishment. After planting, thoroughly water the new plants, maintaining consistent moisture until they are established.
Care and Maintenance
Once established, white creeping thyme exhibits drought tolerance, requiring less frequent watering. Young plants need regular moisture to develop their root systems, but mature plants generally only require supplemental watering during extended dry periods. Avoid overwatering, as consistently soggy soil can lead to root rot.
White creeping thyme generally does not require fertilization, as it thrives in lean soil conditions. If the soil is particularly poor, a light application of a balanced, slow-release organic fertilizer can be applied in early spring. Pruning is minimal; a light trim after the flowering period helps maintain a compact shape and encourages denser foliage. Removing older, woody stems at the end of the growing season can also stimulate new growth.
This plant is generally resistant to most pests and diseases. However, spider mites may appear in hot, dry conditions, and poor drainage can lead to root rot. Improving air circulation and ensuring well-drained soil helps prevent issues like powdery mildew. In colder climates, white creeping thyme is hardy and evergreen, though some foliage may die back in severe winters, typically regrowing in spring.
Benefits and Landscape Uses
White creeping thyme offers several advantages in various landscape applications due to its low-growing, mat-forming habit. It forms a dense carpet that effectively suppresses weeds. Its ability to spread also makes it an excellent choice for erosion control on slopes and banks. The plant’s drought tolerance once established contributes to its low-maintenance appeal, making it suitable for water-wise gardens.
The aromatic foliage releases a pleasant scent when walked upon, making it a favored choice for pathways and areas with light foot traffic. It is also ideal for planting between stepping stones or pavers, where it can soften hard edges and fill gaps. White creeping thyme flowers attract a variety of pollinators, including bees and butterflies, providing a valuable nectar source, especially in early summer.
White creeping thyme is well-suited for:
Rock gardens, where it can sprawl over boulders and thrive in well-drained, rocky conditions.
Border plants, defining garden beds with its neat, low profile.
Lawn alternative, providing a green carpet that requires less mowing and watering than traditional turf grass.
Container gardening, where it can cascade over edges, adding texture and fragrance.