AusBonsai

I know it's not the best time to move a Wisteria, but couldn't help myself! Getting my garden ready for another move! Only disturbed the roots to the extent to get it into it's pot from a Bunnings storage container. Hoping to have a half decent Spring flower show from this assuming it survives my impatience...

Close up of the trunk

Now that the leaves are pretty much off, some naturally and some by force, ( patience never my virtue) time to sort out the trunk... Looking at where the trunkline is, there is an ugly looking branch which is stong and comes out midway of the trunk and only way to keep it is to have it as a back branch and the main trunk hides the bulging start point. So the pic below is what I am planning to use as the front.

. Reading up on Wisteria and also seeing the progression of the Wisteria from bonsai bloke on you tube, I am a bit fearful on how to deal with that big bulging knob along the main trunk.
Options I was thinking of was
1. hollow out the bulge to effectively get just the bark and the cambium and then cut and lay it flat on the trunk and nail it to then grow and fuse with the trunk. A kind of skin graft if you will. 2. Cut the bulging piece off and then layer a number of thin new whips of the same Wisteria which I had propagated as cuttings horizontally across the large cut and hoping for it to fuse over time and cover the wound. 3. Hollow out as in option 1 above but instead of laying it flat create a thinner branch out of it. What do you think is the most viable approach in the long run. And is this operation better done after flowering when the juices are flowing, in summer when the tree is in energy positive or now as it is sleeping.
Any other options that you can think of ask welcome. Zip also doubt if I am overthinking the bulge given Wisteria is grown for the flowers and in that case the bulge won't be see which is also the case when it's in full leaf.

Bump

From a measly 4 odd blooms last year to nearly. Hundred odd blooms this year. I have noticed the bark drying out where that thick top trunk was cut so my choice has been made for me.

Nice load of flowers. And the tree is big enough to carry them well which is a bonus.

Re the branch/trunk stump.
Wisterias have very soft wood so chops tend to rot away well before they heal over. I've never tried anything to try to prevent it so I'll be interested to see if anything you try will help cover the scar.

Will keep this post going and hopefully something works out, so my approach is to clean out/shape the big trunk into two thinner branches and then do approach grafting with whips I have grown last year from the same tree.

This one has been going strong over this spring/summer and with only one small branch broken from our move on its way to becoming a center piece for a Japanese inspired garden