Black Walnut tree
Turns out we have a black walnut tree downhill past the compost heap. We didn't realize, until a friend identified it yesterday by the chartreuse tennis balls growing on it.
Are the nuts edible? And if so, what sort of care should we give to it? I blush to confess we've been sawing the top off and some branches for years, to open up our view. But it's stubborn and has been growing back like crazy. About 25 ft. high. We thought it was a weed tree.