It depends on if its eastern or western US zone 9. I assume you are in the east, there sweet cherries are not possible in zone 9. Sour cherries are borderline there, so survive yes but flourish perhaps not… There are some tropical cherries you can grow which I know nothing about, e.g. Surinam cherry etc. There are not many zone 9 easterners here now but there are several zone 8’s who probably know more than I do.