Optimal Carpenter skill path.

[JunkPunch]

When I started out as a botanist, I harvested 3 stacks (36 at the time) of willow logs, all around Camp Black Brush, (or what ever starting camp is outside of ul'dah) they are all grade one trees.

Also keep on mind that you can return to a node after you harvested 2 other nodes. So if you find a tree that drops willow, mark it down, and either find another tree, and maybe a bush to harvest from and make a cycle of it. That is till the node collapses.