Periwinkle is a character that made her first and main appearance in "Beauty Is Only Smurf Deep", but she also appeared briefly in "Smurfily Ever After". She is a pixie princess who is very vain, selfish, and spoiled. In "Beauty Is Only Smurf Deep", she wanted to kill Vanity Smurf because she was jealous of his looks. In the end though they became best friends.
Her only other appearance is in the cartoon show special "Smurfily Ever After", where she appeared as a guest of Woody and Laconia's wedding.