I have three Wisterias that I planted two years ago. All three have grown well onto their respective frames, and this year they all flowered beautifully for the first time. After flowering, however, one of the plants died back a little, and while the others have since put out lots of new shoots, all the shoots that grow from the faltering Wisteria last a couple of weeks before dying back again once more. Any ideas what could be wrong?
Wisteria Shoots Dying
Certified GKH Gardening Expert
It could be a fungus or it could be something affecting the roots. Treat the plant with a fungicide to treat for possible fungus. Next, check the roots for damage. Wisteria is susceptible to crown gall, so look especially for growths on the trunk at the base. This article may also help with possible issues: https://www.gardeningknowhow.com/ornamental/vines/wisteria/wisteria-diseases.htm