A valuable, fully hardy, strong-growing climber reaching even 20 m (0,5-1 m of annual growth) in suitable trees. It attaches itself by means of aerial roots, though may require initial support. Flowers in corymbs, in June to July, greenish-white, with several large, prominent white florets along the margin. Green, ovate leaves on long petioles turn to yellow in autumn. Stems cooper-brown with peeling bark. Thrives best in moist and acid soils. Particularly useful in half-shade or even complete shade. Excellent on walls, trees, pergolas as well as a groundcover.