There’s a white mulberry tree a few blocks from my house. It’s in the yard in front of an apartment building and every year it drops tons of berries on the ground, but no one seems to pick any of them. I’ve been walking past it on my way to and from work every day for more than three years now. It took me while to think “Hey, those berries look edible. If no one else is using them, I should.” Then it took me a while longer to indentify the tree. (I may be foolish, but not so foolish to eat unknown berries from an unknown tree.) I finally got a positive ID on the tree last fall, just in time for the tree to stop growing berries for the year. So this spring when it started growing berries, I was determined to pick some.