When to prune wisteria (blue)
By Mattbrasco
United Kingdom 
i have recently taken over a maintainence contract from another company which includes pruning a wisteria.. im told the plant used to flower but after a visit and prune {at the wrong time im suspecting} from the previouse company it has not flowered in two years..is there anything i can do to make this plant flower again and the correct pruning advice would be appreciated as well ...thankyou matthew
On plant
Wisteria japonica
12 May, 2008
Featured on:
wisteria
Answers
thankyou for your advice...looking forward to the winter prune
23 Jun, 2008
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HI Matt welcome to goy .Typically Wisteria pruned twice a year summer pruning after flowering finished(if lucky enough to have some) and winter prune.
In summer cut back those long whispy tendrils to about a finger length from main stem.In winter they can be given a hard prune if required.branches that have grown to desired length can be stopped by pruning ends Ideally Wisteria should have one main trunk with branches faning off this.If plant neglected or badly pruned now (winter) is time to remove excess basal growth.Wisteria should flower before leaves appear if flowers and leaves appear together sign of missed or incorrect pruning.
12 May, 2008