Catmint is well known and loved, and this genus contains tall and short plants, but all with the familiar aromatic foliage, grey-green and softly hairy, and spikes of small, funnel-shaped flowers, in the blue to purple range. All kinds like open, sunny places, with well-drained, even poor, soil.

Nepeta 'Six Hills Giant' is a vigorous Nepeta with stems reaching up to a metre high. Deep blue labiate flowers are produced throughout the summer. A useful border plant providing height, depth and long-lasting colour.