If you ever need me, I’m always here for you.
Per the advice from his wife, John’s first stop is Lemar’s family, to let them know what happened to their son.
The family flower shop is assumed to be in Custer’s Grove, GA, which is where John and Lamar attended High School. The actual location is the small shop at the corner of Forsyth and Main St. in Barnesville, GA, listed as 202 Mill St.
(The Falcon and The Winter Soldier S01E05, 2021)