Alchemilla mollis (Lady's mantle): Bright green soft leaves and a froth of acid yellow/green flowers in summer. Very easy for ground cover

Anemone sylvestris (Snowdrop anemone): Large pure white flowers over a mound of green ferny foliage. Hardy. Up to 30cm.

Cardamine quinquefolia: Light purple flowers emerge very early in spring, with attractive deeply divided leaves. Foliage dies down in summer.

Fragaria x ananassa 'Red Ruby' (PBR) (Deep pink flowered strawberry): An ornamental strawberry plant with dark pink flowers from spring to autumn. Good ground cover