"anubis2" wrote in message
...
I have acquired a white wisteria which has been allowed to overgrow for
several years. Does anyone have a good method of pruning?I have been told
that twice a year, serious pruning in December and March is good but which
bits should one cut back. I have made a start on the thin suckers growing
from the main stem and the tangles.

If you want to reduce the size, now is the time when you can remove all
unwanted growth.
From now on, make sure that *all* new growth not specifically wanted for
extension is pruned to about five buds in the autumn. In spring, shorten
further to leave no more than two viable buds on each pruned shoot.

Franz