Bitter Girl is a project by bartender Erin Hines using fruits, herbs, and spices mostly grown in her own backyard (or her mother's). Located in Sonoma County, she grows pears, hops, roses, lavender, mint, walnuts, pomegranates, prickly pears, and much more in her completely organic garden. Mom's Prickly Poms uses pomegranate, prickly pear, pineapple, and guava all grown by Erin's mother in her yard.