As I'm trying to grow fruit trees, with one space in between, away from rivers and other structures, I noticed some trees aren't growing. Is there a rule that only so many trees can grow in a row? Again, with a valid space in between. Or maybe it's not guaranteed all trees will grow? I remember in New Leaf, you couldn't have ~9 trees+bushes touching, probably to block someone in, but this is much different in NH. Thoughts?