I live in Scottsdale, AZ. Very avid fruit grower. In the desert, I have apple trees, plums, pears, peaches, apricots that do very well out here. Unfortunately, my son's favorite fruit are cherries. Even the current low chill varieties out struggle with the summer sun. So, I have looking for a subtropical or tropical substitute for them. Finally got my Barbados cherry to fruit, and, they are too sour. Before I waste more money on a tree, are there any other treeach or bushes that gave fruit that actually taste like a cherry and take strong summer heat?