Succeeds in any moderately good soil in sun or light shade. Prefers a dry calcareous soil and a sunny position. A very hardy plant, tolerating temperatures down to at least -29°c. Wall germander was at one time widely cultivated as a medicinal plant, though it is seldom use at present. It is a very ornamental plant, making a good edging for the border and able to be lightly clipped. The fresh leaves are bitter and pungent to the taste, when rubbed they emit a strong odour somewhat resembling garlic. This species is often confused in gardens with T. divaricatum and T. x lucidrys. It is important to ensure that you have the correct plant if using it medicinally. Cut off dead flower spikes when the plant has finished flowering in order to encourage bushy new growth. A good bee plant. Plants in this genus are notably resistant to honey fungus.

The plant is widely used in making alcoholic drinks with a bitter base, which have digestive or appetite-promoting qualities.

Seed - sow spring in a cold frame and only just cover the seed. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer if they are large enough. Otherwise, grow them on in a cold frame for the winter and plant them out in the following spring. Division in early spring. Larger divisions can be planted out direct into their permanent positions. We have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring. Cuttings of half-ripe wood, July/August in a frame.

Sunny, rather dry places on waste ground and rocky outcrops, mainly on limestone soils Naturalized on old walls in Britain.