by TeckXKnight » Tue Feb 15, 2011 12:18 pm
You may plow, pave, or whatever you'd like to your hearts content as long as you don't plow or pave the tile that the sapling itself is on. Grog explained it well enough -- the only things that stunt growth are objects with hitboxes. If you can punch it or lift it, it has a hitbox and is therefore stunting the growth of your tree. This includes frogs, rats, other trees, and nearly everything else.
Trees need 39 vectors in every direction to not be stunted, which translates to 3 tiles if you plant it PERFECTLY in the center of its tile. It's usually a good idea to give it 4 or 5 tiles so you have leeway for mistakes, because vectors are fucking tiny.