Central Garden & Pet (CENT) 10-Q 2016 Q2 Quarterly report

EXHIBIT 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER AND ACTING PRINCIPAL FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with the accompanying quarterly report on Form 10-Q of Central Garden & Pet Company for the quarter ended March 26, 2016 (the “Report”), I, John R. Ranelli, President 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 presents, in all material respects, the financial condition and results of operations of Central Garden & Pet Company.

May 5, 2016

/s/ JOHN R. RANELLI

John R. Ranelli

President and Chief Executive Officer

(Principal Executive Officer and Acting Principal Financial Officer)