If you want controlled rotation, you can use this mod. Just keep in mind that it can increase memory usage a bunch.https://steamcommunity.com/sharedfiles/filedetails/?id=2033714682&searchtext=tree+prop

Originally posted by Elevator Hazard: You can use the Move It Mod and then ctrl Left\Right to rotate those items.

https://steamcommunity.com/sharedfiles/filedetails/?id=1619685021&searchtext=move+it

Not trees though. They can't be rotated manually. They live by their own rules. :P