Integrifolia Clemitases are hybrids that, instead of climbing up fences and trellises, spread horizontally in borders to give dense, weed-proof ground cover. Alternatively, Clematis 'Arabella' can be planted on top of a wall or steep slope, where it will cascade downwards. This spectacle will look particularly impressive in the summer and early autumn, when the hardy perennial's exotic, purple and white flowers are in bloom. Old Man's Beard plants need plenty of light, so are best suited to sunny or partially shady areas of the garden. Height: 2m (6'7). Spread: 1m (3'3). Pruning group 3.