[Overview]
A perennial cultivated as an ornamental or as an herb.
The leaves are simple and opposite, with a scent similar to mint.
Verticillasters at the stem tips bear small white, pink or pale purple flowers.
The flowers are two-lipped.
[Uses]
Some types are used as a medicinal plant or herb for their leaves.
[Cultivation]
Propagate from seed, by cuttings or by division.
It grows in sun to partial shade, but more sun gives better flowering and a more compact plant.
It prefers well-drained, well-aerated soil.
It is susceptible to dryness, so for potted plants, water thoroughly as soon as the soil surface begins to dry.
For plants in the ground, watering is almost unnecessary once they have taken root, but water if the leaves wilt in summer.
In early spring and autumn, apply slow-release fertilizer around the plant.
There are no particular pests or diseases.
