I used to clear the Lunar Island every in-game year once, but after 2.06 I noticed that the re-growth stopped working! there are no Lune Trees nor anything (Stone Fruit Bush, Lunar Saplings or Lune Tree Blossom).
So what I did, I changed the settings to see if that will help to repopulate them back to the Island. I changed the Lune tree and Regrowth Multiplier to (Very Fast) from the Resource Regrowth tap.
Sadly nothing happened.
1- Cut all the trees on the Lunar Island.
2- Dig all the Stone fruit and Moon Sapling.
3- With for them to regrowth. (Nothing will growth)