SEACOAST BANKING CORP OF FLORIDA

Seacoast has filed a registration statement, as amended, on Form S-4 with the United States Securities and Exchange Commission (the "SEC") in connection with the proposed merger of Heartland Bancshares, Inc. and Heartland National Bank with and into Seacoast and Seacoast National Bank, respectively. The registration statement in connection with the merger includes a proxy statement of Heartland Bancshares, Inc. and a prospectus of Seacoast. This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. WE URGE INVESTORS TO READ THE PROXY STATEMENT/PROSPECTUS AND ANY OTHER DOCUMENTS TO BE FILED WITH THE SEC IN CONNECTION WITH THE MERGERS OR INCORPORATED BY REFERENCE IN THE PROXY STATEMENT/PROSPECTUS BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.

Investors may obtain these documents free of charge at the SEC’s website (www.sec.gov). In addition, documents filed with the SEC by Seacoast will be available free of charge by contacting Investor Relations at (772) 288-6085.

Heartland Bancshares, Inc. and Heartland National Bank, their directors, executive officers, other members of management, and employees may be considered participants in the solicitation of proxies in connection with the proposed mergers with and into Seacoast and Seacoast National Bank. Information regarding the participants in the proxy solicitation of Heartland Bancshares, Inc. and a description of its direct and indirect interests, by security holdings or otherwise, is contained in the proxy statement/prospectus and other relevant materials to be filed with the SEC.