EXHIBIT 99.1 AMENDMENT NO. 4 TO THE CENTRAL GARDEN & PET COMPANY 1993 OMNIBUS EQUITY INCENTIVE PLAN CENTRAL GARDEN & PET COMPANY, having adopted the Central Garden & Pet Company 1993 Omnibus Equity Incentive Plan (the "Plan"), effective as of October 19, 1993, and amended the Plan on three subsequent occasions, hereby again amends the Plan, effective as of February 22, 1999, by deleting the numeral 4,000,000 from the first sentence of Section 4.1 thereof and substituting the numeral 4,800,000 therefor. IN WITNESS WHEREOF, Central Garden & Pet Company, by its duly authorized officer, has executed this Amendment No. 4 to the Plan on the date indicated below. CENTRAL GARDEN & PET COMPANY Date: February 22, 1999 By /s/ Robert B. Jones ------------------------ Robert B. Jones Vice President and Chief Financial Officer