The Saturn Press May Bells greeting card features delicate, bell-shaped flowers of the lily of the valley (Convallaria majalis), beautifully letterpressed on eco-friendly recycled paper. Known as "May Bells" for their blooming in late spring, these sweetly scented white flowers have a rich history-once believed to bring good luck and associated with the arrival of May. Be warned: despite their charming appearance, all parts of the plant are highly poisonous if ingested.