Slypenslyde
Tiller
The wiki is a bit unclear. It implies all fruit trees gain 1 level of quality per year. I planted six fruit trees in my greenhouse (Switch version) on 15 Spring Year 2. It's currently 9 Summer Year 3 and I'm still getting normal quality fruit. I sort of get it if fruit trees don't age in the greenhouse, but I don't see anything to indicate this is the case. What's up?