A mature fig tree in our yard suddenly died. Last year it had bloomed and had fruit (although not alot). This spring, when no buds started forming, we had a tree expert take a look at it, and he confirmed it was dead. Digging it up today, we found that the roots were extremely wet and rotted. Our neighbor's hot tub is just over the fence from the tree (less that 6') and we were wondering if it was possible it could be the cause (either through a leak or when they empty the tub to clean it). Nothing else in the garden seems to be suffering - although we only have some smaller plants and ferns in that area.