I Think My Acer Might Be Dying

Question

I bought a ACER PALMATUM DISSECTUM ‘VIRIDIS last year – it is still in pot and sprouted a abundance beautiful green leaves – which have now all shrivelled up and died. I notice that at the base of the trunk is brown, whereas the rest of it is green. It has been very hot here in Newcastle, so I moved it to a shady spot once I noticed the shrivelled leaves. Is it dying ? See photos of before and after

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Answer 1

It doesn't look very happy. Getting it into the ground or a larger container would help. I hope the info in these articles will help:
https://www.gardeningknowhow.com/ornamental/trees/japanese-maple/japanese-maple-problems.htm
https://www.gardeningknowhow.com/ornamental/trees/maple/what-causes-maple-decline.htm