Q.Laburnums grow sport branches that are evergreen non flowering and too long and weeping.
I’ve seen this on many laburnums but can’t put a name to it. They sap the strength of the tree and make it unbalanced. When remove they grow back vigorously. They are like cancer.
GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on August 29, 2020
If the tree is grown on a rootstalk, the stray branches could be coming from it.
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