Growing Azealia trees underwater is a possibility. I believe this is not intentional and is a bug.
Here is a example:
Status:Duplicate
Reporter:Jac Williams
Created:2021-06-08, 09:24 PM
Updated:2021-06-10, 02:36 PM
Resolved:2021-06-10, 02:36 PM
Votes:0
Watchers:1
Confirmation Status:Unconfirmed
Labels:
Affects Versions:1.17.0
Fix Versions:-