Pale cerise (H6) flowers, VII–X; mid-green foliage; compact; height 21–25cm; spread 31–45cm.
Possible seedling; found by D. Waterer (Bagshot, Surrey, England) in 1954; introduced by Knap Hill nursery (Woking, Surrey) in 1965.
Named after Frederick H. D. Corston was a director of Knap Hill Nursery (Woking, Surrey) from 1968.