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[ACwavelength]

No idea if it's possible, and maybe saplings would have to be individually bonemealed for this to happen.

I hate seeing things like this where careless players have just made the place unattractive to explorers and new towns.



If this were added I would replant trees in places like the screenshot above

 

[Magpieman]

This is something that has been brought up in the past, and something we would love to add. It is possible but is not a quick thing to implement.

The issue you describe is something I would like our regen code to be able to automatically handle. In the meantime, however, please do make /reports ingame by locations you think need regenerating. We can then manually restore them to their original state.