Brett Miller wrote:
I have Sasanqua Apple Blossom plants in front of my home. Some of the
leaves appear to be deformed. They grow very thick almost like a
succulent plant and tend to curl. I don't see that it is detrimental
to the plant, but I'd like to know what it is and what to do about it.

My guess is a sucking-type of insect. Aphids or the like.
Insecticidal soap spray is effective and harmless to the "environment".