Flowers are nature's esthetics/form of art form.
Flowers used in wedding or any occasion jewelry are symbolizing beauty, growth, fertility and everlasting love, at the same time reminder that love and marriage can be as fragile as delicate petals of flowers and should be taken care of on every day bases to keep fresh and growing and beautiful.
Flowers on wedding jewelry will never die and never get withered and will always remind you of the lively love and care married couple have for each other.
Specific flowers have special meanings in many cultures. In Hawaii, the bride and groom wear leis; newly weds in India don flora headdresses.