I have a book that my grandma gave me with a ton of flower meanings. I think they're fascinating and have read this book countless times. I always liked it in the old movies and books when a girl would get flowers and they meant something...

A secret admirer might send a bouquet of these to the girl he liked.

Yellow Acacia = Secret Love 

White Clover = Think of Me

Celandine = Joys to Come

Some of my favorites are:

Blue Bell = Constancy

Four Leaved Clover = Be mine

Dead Leaves = Sadness (Kind of an obvious one, but still very fitting.)

Fern = Sincerity

Forget Me Not = True Love

Pansy = You occupy my thoughts, thoughts

Honeysuckle = Bonds of Love

Lettuce = Cold heartedness (I think this one's funny. :D  )

Purple Lilac = First emtions of Love

Marigold = Grief Despair

Peach Blossom = I am your captive

Petunia = Never despair

Red Poppy = Consolation

Rose = Love

Bridal Rose = Happy Love

Christmas Rose = Relieve my anxiety

White and Red Roses Together = Unity

Yellow Rose = Decrease of Love, Jealousy

Full Rose Over Two buds = Secrecy

Red Rosebud = Pure and Lovely

White Rosebud - Girlhood and a heart ignorant of Love

Rosemary = Remembrance

Snowdrop = Hope

Dwarf Sunflower = Adoration

Red Tulip = Declaration of Love

Yellow Tulip = Hopeless Love

Blue Violet = Faithfulness

White Lily = Purity and modesty

Zinnia = Thoughts of absent friends

Those were all taken from The Language of Flowers

Love, Shay