St Pat is Cowgirl Creamery's seasonal springtime cheese. These rounds are made with whole organic milk from the Chileno Valley Jersey Dairy and are wrapped with stinging nettle leaves. Do not fear the nettles, since they are frozen to remove the sting before they are wrapped around the cheese.

St Pat has a distinctive, green edible rind, commemorates the arrival of spring in Marin County. The name St Pat relates to the season that the green nettle leaves are in season, early spring, just around St. Patrick's Day.

After three weeks of aging, St Pat is mellow, soft, and full of flavor. The nettle leaves impart a smoky, artichoke flavor. St Pat received a Gold Medal at the 2009 North American Jersey Cheese Competition.

Around Labor Day, when the nettle plants are no longer blossoming, Cowgirl Creamery covers that same cheese in locally procured dried herbs for its Pierce Pt.