If you use fertilidust does that mess up the count? I thought I had grown more than 7 wood trees but I used powder for some stages. Or I'm just wrong about number of trees. Anyone have tips on this that has it?
Wood trees are pretty obvious in showing what stage of growth they're at. Full growth trees have 4 horizontal branches and give 120 planks on harvest, so what I do is I'll fert lite a tree to 3 branches, then water and pet for ~4(?) times until the tree gains its fourth branch. You can then either poison the tree or harvest it and then work on getting it back up to full. :) Good luck with the badge!