Thymus (Thyme) ground cover grow best in a warm sunny spot (the more sun it receives, the stronger the flavour if using in cooking), in well-drained soil. They look best grown at the front of a border where you could try grouping different varieties together. It is fairly drought tolerant and needs a well-drained, preferably alkaline, soil. Do water it well until established, but it will grow well in fairly poor, even stony, soil. If you have soil with poor drainage – simply keep Thymus in pots where they will be quite happy.
As a rough guide when planting Thymus as ground cover – 4 plants per square metre is adequate with a little patience, 6 will give better coverage, and 9-12 will make a weed supressing carpet very quickly.
How to grow Thymus
Position: Full Sun
Soil and site: Happy in shallow, poor soil but must be very well drained,
Flowering time: Late Spring to mid-late Summer
Growth rate: Moderate / Fast
Ultimate height and spread: Height 10cm to 30cm, spread approximately 30cm to 60cm depending on variety
Hardiness: Fully hardy once established
Aftercare: Trim plants after flowering to keep them compact and to promote fresh, new growth.