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Pruning Wisteria

Posted by sheiladearing on 16 Mar 2010 at 03:24 PM


If you want to get the best out of your wisteria and enjoy a fine display of its beautiful racemes of pea-like flowers in May and June, a two-stage pruning regime is recommended for established plants. The first stage should be carried out in July or August and involves tackling the mass of long, whippy lateral growths that have been produced by the plant in the current season. These growths should be pruned back to within 15cm, or five or six buds, of a main branch, thereby restricting the vigour of the plant whilst maintaining good leaf cover for the remainder of the summer.  The second stage of pruning should be carried out in the winter, in January or February.  All of the lateral growths pruned in the summer of the previous year should now be shortened to within two or three buds of their base, in order to produce the spurs that will bear flowers in the current season.

 

 Winter Pruning of Wisteria - lateral growths pruned in the summer of the previous year have been shortened to within two or three buds of their base,

 

We have recently given the Wisteria brachybotrys ‘Shiro-kapitan’ growing on the pergola adjacent to the seating area by the restaurant, its winter prune.  This is a very vigorous wisteria which bears large fragrant white flowers.  Because of the vigour of this particular wisteria, we removed most of the new growth coming from the base of the plant.  However, in those places where the framework of the plant is a little bit sparse we retained the new shoots and tied them in to the pergola.  We also took the opportunity to replace any worn out ties.

 

Overview of Wisteria framework

 

Wisteria sinensis AGM flowering on the front of Rosemoor House

 

Hopefully visitors will be able to enjoy this wisteria as they sit outside the restaurant basking in the sunshine of late spring and early summer!

James Shepherd

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