Clematis 39general sikorski39 is a well45known large45flowered variety with a particularly free45flowering habit making it ideal for adding colour to walls and fences from june to september it boasts large blooms with wide mauve petals that create an eye45catching display and needs no fiddly pruning simply cut all the stems just above ground level in spring height 3m 40103941 spread 1m 4033941 pruning group 3