The basic rules of trees are thus:
1. They must be at least 2 squares away from other trees (ie. 1 square of blank land between the two trees minimum).
2. They must be at least 2 squares away from signs, rocks, and houses (ie. 1 square of blank land between the tree and object minimum).
3. They must be at least 3 squares away from any body of water, town border wall, cliff edge, or bridge (ie. 2 squares of blank land between the tree and the barrier minimum).
4. You can fit no more than 8 trees per 8x8 square of land.
5. You can fit no more than 24 trees per 16x16 square of land.
6. Flowers and holes have no impact on tree growth.
7. Any tree that has successfully grown can be chopped down and replanted and will regrow.
8. Pine trees can only grow in the top two "acres" of town (ie. top 32 vertical squares, but all horizontal squares along that axis), and palm trees can only grow on the bottom "acre" of town (ie. the bottom 16 vertical squares, but all horizontal squares along that axis).
9. You can have no more than 400 total trees in your town.
Sky Render - Sanity is for the weak.
