Blossom tree in pot, leaning. What to do?

a1154

I don’t know what happened here, the lean on the trunk is into the wind, so wasn’t that. Should I leave it, cut out the leader, try repotting it straight, or into the ground straight? 

Sorry can’t remember what it is. 

Lizzie27

I think it's far too big for that pot and the weight is making it lean over. Looks like a flowering cherry or plum. Needs to be planted into the ground at an angle to make the main stem look more upright and/or staked. Don't prune it until mid-summer as it could get a nasty disease called silver leaf. 

Borderline

Any tree will be happier in the ground, but if you need to keep them in a pot, I would re-pot, into a larger size pot and re-set it to tilt back so the leader branch is vertical again. Check the base to make sure there is no breakage.

Buttercupdays

If it has well developed roots you may have to break that pot to get it out - pots with vertical or outward tapering sides are always safer!