We all know that old story about planting mint in a pot with no bottom, to restrict the spread of it... and it's not just mint that needs a bit of a firm hand:…
Frost hardy, but in very cold winters protect by covering dormant tubers with dry bracken or loose peat. Needs a well drained soil in a sunny, sheltered site.
Propagate by seed or division in early spring.
Pests, diseases or disorders
Slugs and red spider mites may be problematic.