Istanbul ok. It,s hot and very hot. The thing is that that tree starts to be pretty unconfortable above above 30 C. Get rid of the dry out parts and pay attention to the watering ... less foliage - less watering. Try to protect it from direct sunlight a little. And in the end don't worry if the tree dies on you, it will not be the first or the last, but that's how you learn. The safest way is to try to use trees from your zone and always pot or repot into fast draining soil and do that only in spring.
When I started out, I did this mistake and not once I've killed a lot of trees. As I said, most of my trees are on a balcony. It's very good to learn from the web or books, but it's even more important to learn from real life experiments - like enything - practice, practice.
I would try to get some olive trees . They thrive in your area.