Hebe recurva

Hebe recurva is a flowering plant of the family Plantaginaceae, which is endemic to the north-west area of Nelson on the South Island of New Zealand. It is an evergreen shrub, reaching in height, with gray, spear-shaped leaves that are 2–4 cm long. Flowers are white.
Mature leaves curve backwards slightly, hence the specific epithet "recurva". 
The cultivar 'Boughton Silver' has received the Royal Horticultural Society's Award of Garden Merit. Hardy down to , it requires a sheltered spot in full sun or partial shade.