Prostanthera ovalifolia: is a member of the Lamiaceae family and is known as the Oval-leaved Mint Bush. Prostanthera ovalifolia is the most widely cultivated Mint Bush.
The Oval-leaved Mint Bush is a variable shrub that may reach a height of five metres. Judicious pruning will keep plants to a dense and tidy two metres.
The leaves range in size from 0.5–5 centimetres in length, moderately crowded, mid green to dark green and strongly aromatic.
Flowers are about one centimetre long, usually mauve, purple or bluish-purple. A white-flowered form is sometimes available. Flowering occurs in spring and blooms are both profuse and very conspicuous. After flowering plants appreciate pruning. Each stem should be cut off behind the spent flowers.
Prostanthera ovalifolia is a native of New South Wales and Queensland.
This hardy and free-flowering species will develop into a colourful screening plant.
There is a form with variegated foliage.
Propagate from cuttings.