Like the Calla, Lily of the Valley (Convallaria majalis) is not a lily at all, it belongs to the botanical family Asparagaceae. The small, delicate flowers grow on stalks only about 4 to 5 inches tall from the center of the plant and have a strong, sweet fragrance.
Lily of the Valley is popular with brides and tends to be rather expensive because it is so small and a lot is needed to make an impact. It also has a very soft stem making it difficult to insert into floral foam. All parts of the Lily of the Valley plant are extremely poisonous when ingested, so don’t eat your bouquet!
Lily of the Valley symbolizes sweetness, humility, returning happiness, and trust.
You can learn more about Lily of the Valley on Wikipedia.