Catherine Periwinkle is a Milk Rabbit character from the Sylvanian Families universe, serving as the older sister within the Periwinkle family. She developed a lifelong passion for flowers starting in childhood, a fascination that blossomed into her career as a florist. Catherine possesses a specific skill for selecting the perfect flowers and colors for diverse occasions, ranging from birthdays and first dates to weddings. Professionally, she co-owns and operates the Blooming Flower Shop in town, a business partnership formed with her best friend from college, Miranda Maple. A significant retcon in 2018 altered her family position; originally presented as the eldest sibling, the release of a new toy set formally established her as having an older sister within the Periwinkle family structure. Her documented background centers on her floral profession, her collaboration running the Blooming Flower Shop, and her status as the older sister following the 2018 retcon.