Form: 10-K

Annual report pursuant to Section 13 and 15(d)

December 12, 2013

EXHIBIT 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-83022, 333-105965, 333-134055, 333-141671 and 333-176408 on Form S-8 of our report dated December 11, 2013, relating to the consolidated financial statements of Central Garden & Pet Company and the effectiveness of Central Garden & Pet Company’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Central Garden & Pet Company for the fiscal year ended September 28, 2013.

/S/ DELOITTE & TOUCHE LLP

San Francisco, California

December 11, 2013