Hebe decumbens is a low-growing, open, evergreen shrub, growing to about 8 in (20 cm) high. The leaves are a somewhat glossy green, and red-edged, about 0.8 in (20 mm) long; the branches are almost black. The flowers are white, in dense bunches early summer. A hardy hebe in the UK.
This hebe is found in alpine and subalpine areas in the drier mountains of Marlborough, and adjacent parts of Canterbury and Nelson, South Island, New Zealand.