AIFD
Accredited membership in AIFD is extremely selective and can be obtained only after a candidate has effectively demonstrated advanced professional ability of his or her floral artistry. Members proudly wear the "AIFD" addendum on their name to demonstrate that their peers have found them to be "Accredited in Floral Design." They must continue to demonstrate their "cutting edge" art by meeting specified continuing education requirements.
The florist at the end of my block is amazing, I think he's AIFD.