Why is the four-leaf clover a universal symbol of good luck? Learn more about this green plant associated with St. Patrick’s Day. Fact checked by Marcus Reeves Today, looking for four-leaf clove ...

Fact checked by Sarah Scott Reviewed by Mary Marlowe Leverette Both Irish shamrocks and four-leaf clovers evoke St. Patrick's Day and the green landscapes ... a four-leafed clover, not a shamrock.