Hebe barkeri was found in 1898 by S D Barker on Chatham Island, New Zealand. The branches are erect, pale green to brownish-purple. The pale green, evergreen leaves, are spear-shaped, about 2 in (50 mm) long and 0.5 in (12 mm) wide. The flowers are purplish-blue, fading to white, late June to July or August. Fairly hardy in the UK.