The actress got into the spirit of things as she and her two youngest children got dressed up in green for a trip to the grocery store in Los Angeles, Ca.
Minus big sister Violet who yesterday was spotted wearing a funny St. Pat's Day hat and wig, and Seraphina and Samuel munched on a shared bagel during the Sunday morning shop.
And they were all smiles as they left with a shopping cart full of goodies, including a St. Patrick's Day balloon.
While Garner's husband, Ben Affleck was absent for the trip she did get a helping hand from a nanny.
The Hollywood couple took a break from parenting duty the day before when they were spotted shopping for a piano in Beverly Hills before heading for a lunch date together in Brentwood.