Maple leaves drooping and dying

[Arlithrien]

Left a tree with the family and they've been watching it. After a healthy leafing out, it's declined in health. The leaves droop then die. They are not crispy but soft to the touch.

I'm pretty sure it's damage from either too much sun or not watering thoroughly enough but just wanted to see if anyone more experienced can diagnose so I don't risk it declining further.

 

[just.wing.it]

Too much water?

 

[sorce]

Soil Pics?

Sorce

 

[leatherback]

Has it been in de wind?
Was it recently repotted?

 

[Arlithrien]

Too much water?

Soil Pics?

Sorce

It's in a mix of 2/3 pumice and 1/3 crushed granite. And the more shaded areas the leaves are fine

Has it been in de wind?
Was it recently repotted?

It's sort of under a treeline, getting dappled sun. Was repotted early winter 2020 as soon as it went dormant.

 

[sorce]

And the more shaded areas the leaves are fine

That would mostly rule out too much water, still could be too little.

The winter repotting worries me some, as that whole period through winter is dangerous with no good way to close wounds or repair roots.

That is likely exasterbating this "too much sun" problem.

Sorce

 

[Arlithrien]

That would mostly rule out too much water, still could be too little.

The winter repotting worries me some, as that whole period through winter is dangerous with no good way to close wounds or repair roots.

That is likely exasterbating this "too much sun" problem.

Sorce

Yeah but it was a garden tree that somebody wanted removed so wasn't much of a choice. At least it was dormant.

 

[River's Edge]

Likely evidence of the restricted root function from repotting, combined with a substrate that dries out faster than expected.
Keep out of the wind and direct sun while maintaining proper moisture levels. The tree should improve if the roots were not damaged too much from the dormant repot.
Leafing out normally simply indicates that sufficient reserves were present in the remaining root ball and tree for that to occur. Now the roots need to catch up with the new growth.