Arabis Alpina Caucasica ‘Alabaster’, 1 litre pot

A mat-forming, evergreen perennial, to 20cm tall, with loose rosettes of toothed, grey-green, oval leaves and, in spring, masses of fragrant, white flowers.

Arabis can be annuals or evergreen perennials, usually mat-forming, with simple leaves and racemes of 4-petalled white, pink or purple flowers.