Prostanthera cuneata Benth. Alpine Mint Bush A low rounded shrub with thick dark green crowded leaves and white flowers, native of New South Wales, Victoria and Tasmania growing in subalpine heath and scrub, often under snowgums, in rocky granite soil, flowering mainly in spring. Shrub to 1m high, 1.5m across. Leaves to 4–5mm long, cuneate at base, rounded at apex. Flowers with purple blotches in the throat, to 10–15mm long. For a sunny position and well-drained soil. The hardiest species. Min. -10°C.