Marie Cefalo says people are ready for the change, "Within the last hour received eight phone calls and five e-mails."
Officials say in order to get $500 in cash, they would have to replace at least 1000 square feet of fescue and lay down "warm season grass."
Typical warm season grass types include: Bahia, Bermuda, Buffalo, Carpet, Centipede, St. Augustine, Zoysia.
Cary is also offering other incentives to save water which include rebates toward high-efficiency toilets and reduced fees for homebuilders who install water saving measure.
Cefalo says they haven't ironed out all the details to the incentive plan, but officials hope to have the program up and running in a few months.