CANDY and flowers? They’re nice, but they’ll cost you. On the other hand, telling your mother she’s wonderful — that’s not only free, it’s priceless.

Give your mom a memorable Mother’s Day by telling the world why she rules — by describing the things she does or says that make her special, in 200 words or less. Include your name, age and phone number and then e-mail us at mymomrules@nypost.com, or write to: Saturday Kids, the New York Post, 1211 Sixth Ave., New York, NY 10036.

We’ll run our favorites (and maybe a photo of the two of you) on May 9. So get cracking! We need to hear from you no later than May 7.