Convallaria majalis 'Bordeaux' is an improved version of the old-fashioned lily-of-the-valley with larger and more plentiful flowers.

Convallaria majalis 'Hardwick Hall' is a lily-of-the-valley with fragrant, white bell-shaped flowers and foliage that is rimmed in yellow.

Convallaria majalis 'Hofheim' is a rare form with gold to light green edged leaves, sometimes with extra stripes.

Convallaria majalis 'Rosea' is a lily-of-the-valley with pale pink, waxy, fragrant, bell-shaped flowers.

Classic, fragrant, white flowers in spring and variegated foliage that looks good through spring, summer and fall.

Cordyline australis Pink Passion 'Seipin' is a dazzling cabbage palm with electric pink and burgundy foliage forming spiky displays of subtropical drama.

Cordyline 'Dancing Paso Doble' is a subtropical cabbage palm with dramatic deep purple foliage with hot pink edges.

Cordyline 'Renegade' is a subtropical cabbage palm with glossy, dark purple foliage that appears almost black.

Cordyline 'Salsa' is a dazzling cabbage palm with bright red and deep pink foliage forming spiky displays of subtropical drama.

Corydalis cheilanthifolia has amazing fern-like foliage emerging bronzy-orange topped with yellow flowers in late spring.

'Blue Heron' is a true blue, fragrant Corydalis with finely textured foliage.

Corydalis elata is taller, later blooming, fragrant, and does not go dormant in summer.

Dainty sky blue flowers over delicate mats of dissected flowers.

Numerous lovely, fragrant, gentian blue flowers top the delicate, dissected foliage in spring.

Corydalis flexuosa Hillier 'Porcelain Blue' produces clusters of fragrant, glowing blue flowers atop finely textured foliage.

Bronze-green foliage with red highlights and stems and large blue to purple-blue flowers.

Corydalis flexuosa 'Royal Purple' has red-marked leaves and sky blue and light purple, fragrant flowers.

Corydalis lutea has clusters of bright yellow, spurred flowers that bloom above blue-green foliage for months on end.

Corydalis ochroleuca is smothered in fragrant, creamy white, tubular flowers with yellow at the centres for months.

Corydalis quantmeyerana 'Chocolate Star' has reddish chocolate-brown foliage three seasons of the year with great lavender flowers in spring.

Corydalis solida 'Firebird' is the best red Corydalis, producing sweetly fragrant flowers above finely dissected, fern-like foliage.