Oddbean new post about login | logout I don't have a cherimoya but I have a sour sop & used to have a custard apple until it died (too dry a location). I also have an American pawpaw in a pot. They're all from the same anonna family. It should be just a case of planting some of the big seeds in the fruit.
Yeah I had one before I grew from seed but it stayed in an unheated conservatory and I couldn't take it with me when I moved house. I was concerned about the frost but I think they grow them in Spain do you know what pollinates this family or if they can be self fertile? I had an american pawpaw growing in a pot but it died when I planted it in the ground as it didn't like the root disturbance. Perhaps I need to look into that again as they are hardy.