Suckers – Wisteria floribunda Honabeni

Question

I root pruned the plant last year and this year the larger roots stubs that remained in the ground have sprouted aggressive suckers. Today I dug out what I could of these down to about 12″ depth and treated the stubs with gyophosphate. Hopefully that solves that issue on last year’s severed roots

The plant is over 10 years old and the branches are pruned several times a year and we enjoy our multitude of blooms.

The issue is the root crown and shallow root stubs put out many suckers and pruning at ground level is hard on my knees and pruners. I blasted the crown with water – that helped to remove the suckers at the root. I am reluctant to remove all of the large roots that move out about 1″ below ground level. Which leads to my question: What can I do to slow down the proliferation of shoots?

Answer 1

Pruning wisteria only encourages these shoots, and yet, it should be pruned regularly!

These vines are innately aggressive, especially if they're healthy. This article may be of some help:
https://www.gardeningknowhow.com/ornamental/vines/wisteria/controlling-or-getting-rid-of-wisteria.htm