No, not a salad leaf you haven't heard of. Actual retirement.
John has told us that while he enjoys contributing to the Veg Men blog it is increasingly interfering with his commitment to being dead.
So, it is with a heavy heart that we say a fond fare thee well to the grandfather of salads and his luscious hair.
Next time you're eating some fennel to help expel wind and sharpen your brain, please spare a thought for John and the wondrous things he taught us.