How exactly do you know if a tree is at it's highest health level? I bought a house and planted trees so I could do the watering and petting without someone harvesting (in case that lowers the health). So far nothing is happening. And I don't see a health level on the tree so I don't know how far the tree has to go.
I'm using wood trees (figured it be nice to get planks later). Does that quest not work with wood trees? Besides watering and petting, what am I missing?