The Sweet Pea, or Lathyrus odoratus or latifolius, originated from the U.K., Southern Italy, and Sicily and burst into mainstream cultivation in the 17th century.  Now they bloom all over the world, including next to present-day cave dwellings in the Armenian mountains.  

While the sweet pea symbolizes the wish for a good journey or bon voyage, it is mostly associated with blissful pleasure because of its purported aphrodisiac effect.   Sweet peas make excellent long-lasting cut flowers.  Their array of colors makes them a great choice for brides maids bouquets and flower arrangements.   They can also be used pressed in dried floral decorations.