Hebe bishopiana is a low, spreading, evergreen shrub, growing to about 16 in (40 cm) high. The lance-shaped leaves are 1.6–3.2 in (4–8 cm) long and 0.6–1 in (15–25 mm) wide. The branchlets are deep purple. The flowers open pale lilac and fade to white, and are carried from September until the first frosts. A tender hebe in the UK.
It was thought to be a naturally occurring hybrid, but research by Peter de Lange in 1996 has shown it to be a species. It is classified as a vulnerable species, as it is under threat from introduced weeds.