The cards are a part of Parker's recently launched Hallmark Gold Crown Signature Collection initiative, reported Us magazine.
"Mother's Day reminds us to recognise and celebrate the women who love us unconditionally and support us through life's ups and downs - not just our own mothers, but also our sisters, friends and anyone else who's touched our lives in a meaningful way," Parker, 49, said.
"It makes me very happy to think that the Hallmark cards I had a hand in creating will bring joy to all types of moms this Mother's Day," she added.