Apple mint typically grows to a height of from 40 to 100 centimetres (16 to 39 in) tall and spreads by stolons to form clonal colonies. The foliage is light green, with the opposite, wrinkled, sessile leaves being oblong to nearly ovate, 3 to 5 cm (1.2 to 2.0 in) long and 2 to 4 cm (0.8 to 1.6 in) broad. They are somewhat hairy on top and downy underneath with serrated edges. The flowers develop in terminal spikes 4 to 9 cm (1.6 to 3.5 in) long and consisting of a number of whorls of white or pinkish flowers. Apple mint flowers in mid to late summer. The plant is aromatic with a fruity, minty flavour.