Operation Plum Cascade is now pretty much over, but the damsons remain. Today will see them picked, pulped, jammed and otherwise converted into stuff-what-we-will-consume. As I've mentioned, they are not easy to prepare. Only by cooking will you ever extract those stones.
Medlars are even stranger. Here you have a fruit that you have to pick and allow to rot before it can be eaten. This process is called bletting. It a slightly arcane feel to it which I find irresistible.
And of course, this is the time of year to be ordering bare root fruit trees. Tempting, very, very tempting.