Ajuga reptans 'Catlin's Giant' (Bugle)
A low-growing, spreading perennial which forms a mat of large, glossy purple-brown leaves and spikes of blue flowers. Height 30cm (1ft), Spread 1m (3ft).
Arabis blepharophylla 'Rose Delight' (Rock Cress)
A mat-forming, short-lived, evergreen perennial with rosettes of oval, toothed, hairy-edged, dark green leaves and erect stems bearing clusters of purple-pink flowers in late spring and early summer.
Aubrieta 'Glacier Blue'
A compact, mat-forming, evergreen to semi-evergreen perennial with small, mid- to grey-green leaves and, from mid-spring to early summer, short racemes of four-petalled, violet-blue flowers with tiny, yellow eyes.
Fragaria vesca (Woodland Strawberry)
A woodland perennial with bright green leaves and white flowers in spring, producing red strawberries in mid-summer. Height & Spread 50cm (1.5ft).
Phlox subulata 'McDaniel's Cushion'
A compact, mat-forming, evergreen perennial with linear, dark green leaves and salver-shaped, deep pink flowers in late spring and early summer. Height 10cm (4in), Spread 50cm (1.5ft).
Sedum hybridum 'Immergrunchen' (Stonecrop)
A low, mat-forming, evergreen perennial with loose rosettes of fleshly, scalloped, light green leaves, flushed red in winter, and, in summer, clusters of yellow to yellow-green, star-shaped flowers.
Viola 'Showgirl' (Victorian Viola)
A compact, mound-forming, evergreen perennial with ovate, toothed, mid- to dark green leaves and, from mid-spring to mid-autumn, fragrant, primrose yellow flowers flushed with mauve. Height & Spread 20cm (8in).
Viola 'Skylark' (Victorian Viola)
A compact, mound-forming, evergreen perennial with ovate, toothed, mid- to dark green leaves and, from mid-spring to mid-autumn, veined, pale lilac-blue flowers. Height & Spread 20cm (8in).