Salix tree leaning help

Hi after some suggestions as to what I can do to keep the salix tree from leaning anymore.

It's been in for 10 years and on reflection I don't think the previous owner put it in the correct area being quite close to the fence.

The top of the planter has rotted which I can replace but any advice as to how I can stop the tree leaning, it seems rooted

 

I assume that is actually rooted in the ground.
If its firm I cant think of a way you can bring it upright.

I'd get rid of the woodwork as it rots.

 

Luckliy I know the previous owner he says there's a black sheeting underneath which had been poked so for the tree to get that big I guess it's rooted into the ground?

Yes the woodwork is the next job unsure if I should cut and repair the top section

Main issue is cutting the nails as the dog uses it as a perch to woof at the dog at the back of us hence all the cane sticks

 

I think a complete re vamp is in order personally, the small box bush looks like it has caterpillar attack and all the wood is rotting.

Probably shouldn't comment as its not my type of gardening, hopefully someone else will come along with ideas.

 

Yes we had another box in there but this year it got attacked before I could treat it. Noticed these past few years it's getting worse for caterpillars in box.

I think the rest of the wood is ok.

 

I don't really see how you can do anything to make it more upright @DaveyB , so the next best solution is to sort the woodwork, then plant something that will hide the trunk better. Ideally an evergreen, but even something taller/wider that provides coverage for a good part of the year, or a selection of perennials/bulbs to give more interest. It also depends on just how keen you are to keep the Willow though, and have the maintenance of the surrounds.
Of course, it also depends on your location and conditions. The fact that the wood's all rotting suggests you're in a reasonably wet area, or the rain is getting in well enough to the planting.
We don't get the problems up here with box, but if that's what the problem is, you'd be better getting shot of that anyway, and finding something more suitable, and easier to maintain there.

 

It depends entirely on how much you love the willow. It is only going to lean further away from the fence as it grows. A natural reaction from any plant.
I would be inclined to remove the tree and rotting wood and start again, possibly something to stop your dog being able to use it as a shouting post. ie. lower soil level, prickly, fenced.

 

We do love the tree it provides cover at the bottom of the garden and blocks out a few windows, the neighbours at the back also love it and have a moan when I cut it back a few times a year .

Yes that corner has alot of water, my friend sent a picture before the tree and after he'd dug the hole it would fill up with water I guess that's why they planted the willow.

With the box, on the front we have a box hedge and usually it's treated once a year with xentari which does the job, but I just have missed the back.

I'm open to taking out the wood, it's just going to leave the bottom open

 

If you want to keep the salix, I'd be inclined to make that lower raised area [with the slate/statues etc] the same height as the rest of the bed. You'd have more scope with planting to hide the slanted trunk, and as the drainage is poor and the willow helps with that, it'll also make it easier to pick plants that will do well if there's more depth of soil.
I'd certainly take out the box if you get the moth, as already suggested by @pete - it does look like it has that kind of damage. There's plenty of other evergreen shrubs that would be easier for you in terms of maintenance.

It really comes down to whether you want to totally change the site, or work around what you have.