Exhibit 99.1
 
CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350
 
In connection with the accompanying Form 10-Q/A of Central Garden & Pet Company for the quarterly period ended June 29, 2002 (the “Report”), I, William E. Brown, Chairman of the Board and Chief Executive Officer of Central Garden & Pet Company, hereby certify pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:
 
(1)    such Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
 
(2)    the information contained in such Report fairly presents, in all material respects, the financial condition and results of operations of Central Garden & Pet Company.
 
December 10, 2002
     
/s/    WILLIAM E. BROWN        

           
William E. Brown
Chairman of the Board and Chief Executive Officer