Sofia Vergara and Joe Manganiello Turn to Celeb Florist Jeff Leatham to Make Their Wedding Beautiful

While the happy couple prepare for their upcoming nuptials, florist-to-the-stars Jeff Leatham and his crew are hard at work.

Sofia Vergara and Joe Manganiello are gearing up for a spectacular wedding ceremony on Sunday, and ET has an inside look at one of the key details of the big day -- the floral arrangements.

ET can confirm that the couple have employed the creative skills of celebrated floral artist Jeff Leatham, a celebrity florist based out of New York City and Paris.

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Leatham's team spent most of the day on Thursday at The Breakers Palm Beach luxury resort, setting up creative floral arrangements in a room across from the Mediterranean ballroom, where it is rumored the wedding will take place.

A source tells ET that the sweet aroma of flowers filled the entire wing of the hotel where the wedding will take place.

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Leatham, who is the artistic director for Four Seasons Hotels, has been in charge of a number of high-profile ceremonies for celebrities such as Tina Turner, Eva Longoria and Chelsea Clinton.

Recently, Leatham was hired to provide the floral décor for Kris Jenner's star-studded 60th birthday.

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Vergara has had a long friendship with Leatham, and has even Instagrammed a number of his floral arrangements in the past -- as well as a sweet house warming gift she received from the famed florist after moving inter her new home with her fiancé in May.

Check out the video below for comprehensive look at everything you could ever need to know about the couple's upcoming, elegant wedding!