Clematis on the Web :: clematis detail
Clematis 'M Koster'

Medium to large, rose-pink to red-purple flowers with a paler bar. Yellow or yellow-green anthers on paler stamens.


Group: Viticella group
Approximate height:  2.0 - 4.0 metres
Flowering period(s):  Jul Aug Sep
Aspect: Any aspect
Pruning: Hard prune (Group 3)
Raised by: Marinus Koster
Country of origin: Holland
Date raised:  c1890
Parentage:  patens x ?viticella
Other name(s): 'Margot Koster' (UK); 'Margaret Koster' (UK); 'Marinus Koster' (Holland); 'Monsieur Koster' (France); 'Mr Koster' (France). Mis-spelling: 'Margot Kostner'
Further detail: Flower diameter: 7-14cm
Tepals: (4-) 6; obovate, pointed, often twisted, gappy, tip and margin recurved