Too much depends on the soil and the tree to give a real answer. I see whole orchards of apples growing here at quite an angle, due to prevailing winds and the dwarfing rootstocks used. In these circumstances to keep the trees vertical permanent staking would be required. Al

It moved in the ground I take it? so the answer above is correct. depends. Dwarf rootstock needs supported forever or this will continue to happen.

If you were just straightening a curved branch or trunk that would depend on age/size of the wood, but yours at 3 years old can be retrained in weeks if a branch, longer but doable at the trunk.

A bent trunk or a limb trained to a new position will retain it's new shape after one growing season. During that time it lays down new wood in the new shape. That will be enough to hold the new shape unless something is pulling it into another shape, like wt of fruit.

FN, I think he may be talking about a dislodged tree and not a crooked one.

For this problem there are so many variables that the only practical advice I can offer is to have an easily detachable staking system so you can test the anchorage and reattach if anchorage is not yet achieved.

I had many trees blow over in a hurricane a year ago and some anchored after one growing season while others are still wobbly. The time it takes It depends on if roots were torn or simply pulled free but still intact along with a half dozen other factors, including soil, species, variety, rootstock and size of the tree.

I sorry I didn't give enough information . The tree bent over in the top half and the roots held the trunk straight. Hopefully it will stay put next spring.

Thanks so much

OK, tie the branches where you want them and they will stay. How long to leave tied depends on the size of the branch. In a month you can untie and see where you are on them and retie as necessary. You can pull to the left or right as well to improve the shape. Anything more then a month you may want to tie to a different spot to avoid having a pinched spot or shall we call it a dent there.

A piece of metal electric conduit or even rebar can be used. For straightening push one or the other into the ground next to the tree and then use electric tape to force the tree into a straight position- first taping the trunk and working your way up taping tightly to the post in several spots.

The branch isn't partially snapped, is it?

No the branch isn't snapped. It straightened up pretty easily so it should be just a matter of time till it stays put.

Then FN told you all you needed to know, I guess. I find that repositioned wood stiffens after first surge of growth- certainly by the end of Spring if you straightened it before growth started.