Salvia canariensis var. alba
(Canary Island Sage). The rarely seen white form of this shrubby perennial. Long, slightly arrow-shaped, scented, grey-green leaves and an ongoing display of pure white flowers throughout summer. Can grow to 1.5m x 1.5m in the right spot – cut back after flowering to maintain shape. Full sun to part shade, hardy to light frosts. 1 litre pot.