Can they be rooted or do they have to be grafted ?

For grafting only

Thanks for sharing the pics and taste report. I also love the complex flavor of cherimoya, just as you describe. After tasting many varieties, I find that I prefer the ones with more acidity and a more complex flavor rather than just sweet. My multigraft cherimoya got really bad sunburn with the 100+F temperatures we have had recently.

Simon

Hi Simon,
Wow, your cherimoya tree has many fruits. You are right, fruits with more acidity are usually better. I haven't tasted different cherimoyas but I have tasted many different kinds of dragon fruits. The dragon fruit Delight is very sweet but less acidity which I don't like much, I like the other varieties which are more acidic such as Physical Graffiti, Nicaraguan...
Tiffy