It's the time to harvest green black walnuts. Typically, I'm able to get a handful per tree that are accessible from the ground. I just came across a tree that had the top blown off in a storm, so I was able to collect ~10 kg almost entirely from one tree.
This is probably way more than I need, so it's time to track down some alternative uses for them.
Last year I made nocino and walnut syrup. This year, I'm going to do more of that as well as some vin de noix.
Let me know if you have any other suggestions.