source: https://aggie-horticulture.tamu.edu/archives/parsons/publications/flowers/flowers.html

• Acacia (Blossom) — Concealed Love, Beauty in Retirement, Chaste Love
• Acorn — Nordic Symbol of Life and Immortality
• Ambrosia — Your Love is Reciprocated
• Amaryllis — Pride, Pastoral Poetry
• Anemone — Forsaken
• Arbutus — Thee Only Do I Love
• Aster — Symbol of Love, Daintiness
• Azalea — Take Care of Yourself for Me, Temperance, Fragile Passion, Chinese Symbol of Womanhood
• Bachelor Button — Single Blessedness
• Begonia — Beware
• Bells of Ireland — Good Luck
• Bittersweet — Truth
• Bluebell — Humility
• Bouquet of Withered Flowers — Rejected Love
• Cactus — Endurance
• Camellia (Pink) — Longing For You
• Camellia (Red) — You're a Flame in My Heart
• Camellia (White) — You're Adorable
• Candytuft — Indifference
• Carnation (General) — Fascination, Women Love
• Carnation (Pink) — I'll Never Forget You
• Carnation (Red) — My Heart Aches For You, Admiration
• Carnation (Purple) — Capriciousness
• Carnation (Solid Color) — Yes
• Carnation (Striped) — No, Refusal, Sorry I Can't Be with You, Wish I Could Be with You
• Carnation (White) — Sweet and Lovely, Innocence, Pure Love, Woman's Good Luck Gift
• Carnation (Yellow) — You Have Disappointed Me, Rejection
• Cattail — Peace, Prosperity
• Chrysanthemum (Red) — I Love You
• Chrysanthemum (White) — Truth
• Chrysanthemum (Yellow) — Slighted Love
• Coreopsis — Always Cheerful
• Crocus — Cheerfulness
• Cyclamen — Resignation and Good-bye
• Daffodil — Regard, Unequalled Love, You're the Only One, The Sun is Always Shining When I'm with You
• Daisy — Innocence, Loyal Love, I'll Never Tell, Purity
• Dandelion — Faithfulness, Happiness
• Dead Leaves — Sadness
• Fern — Magic, Fascination, Confidence and Shelter
• Fern (Maidenhair) — Secret Bond of Love
• Fir — Time
• Flax — Domestic Symbol
• Forget-Me-Not — True Love, Memories
• Forsythia — Anticipation
• Gardenia — You're Lovely, Secret Love
• Garlic — Courage, Strength
• Geranium — Stupidity, Folly
• Gladioli — Give Me a Break, I'm Really Sincere, Flower of the Gladiators
• Gloxinia — Love at First Sight
• Grass — Submission
• Heather (Lavender) — Admiration, Solitude
• Heather (White) — Protection, Wishes Will Come True
• Holly — Defense, Domestic Happiness
• Hyacinth (General) — Games and Sports, Rashness, Flower Dedicated to Apollo
• Hyacinth (Blue) — Constancy
• Hyacinth (Purple) — I am Sorry, Please Forgive Me, Sorrow
• Hyacinth (Red or Pink) — Play
• Hyacinth (White) — Loveliness, I'll Pray for You
• Hyacinth (Yellow) — Jealousy
• Hydrangea — Thank You for Understanding, Frigidity, Heartlessness
• Iris — Fleur-de-lis, Emblem of France, Your Friendship Means so Much to Me, Faith, Hope, Wisdom and Valor, My Compliments
• Ivy — Wedded Love, Fidelity, Friendship, Affection
• Ivy (Sprig of White Tendrils) — Anxious to Please, Affection
• Jonquil — Love Me, Affection Returned, Desire, Sympathy, Desire for Affection Returned
• Larkspur (Pink) — Fickleness
• Lily (Orange) — Hatred
• Lily (White) — Virginity, Purity, Majesty, It's Heavenly to be with You
• Lily (Yellow) — I'm Walking on Air, False and Gay
• Lily (Calla) — Beauty
• Lily (Day) — Coquetry, Chinese Emblem for Mother
• Lily (Eucharis) — Maiden Charms
• Lily (Tiger) — Wealth, Pride
• Lily of the Valley — Sweetness, Tears of the Virgin Mary, Return to Happiness, Humility, You've Made My Life Complete
• Magnolia — Nobility
• Marigold — Cruelty, Grief, Jealousy
• Mistletoe — Kiss Me, Affection, To Surmount Difficulties, Sacred Plant of India, Magic Plant of the Druids
• Monkhood — Beware, A Deadly Foe is Near
• Moss — Maternal Love, Charity
• Myrtle — Love, Hebrew Emblem of Marriage
• Narcissus — Egotism, Formality, Stay as Sweet as You Are
• Nasturtium — Conquest, Victory in Battle
• Nuts — Stupidity
• Oleander — Caution
• Orange Blossom — Innocence, Eternal Love, Marriage and Fruitfulness
• Orange, Mock — Deceit
• Orchid — Love, Beauty, Refinement, Beautiful Lady, Chinese Symbol for Many Children
• Palm Leaves — Victory and Success
• Peony — Shame, Happy Life, Happy Marriage
• Petunia — Resentment, Anger, Your Presence Soothes Me
• Pine — Hope, Pity
• Poppy (General) — Eternal Sleep, Oblivion, Imagination
• Poppy (Red) — Pleasure
• Poppy (White) — Consolation (Poppy is the floral sign of consolation probably because it was created by "Ceres" while in search of her daughter, Prosperpine, to assuage her grief).
• Poppy (Yellow) — Wealth, Success
• Primrose — I Can't Live without You
• Primrose (Evening) — Inconstancy
• Rose (Bridal) — Happy Love
• Rose (Christmas) — Tranquilize My Anxiety, Anxiety
• Rose (Damask) — Persian Ambassador of Love
• Rose (Dark Crimson) — Mourning
• Rose (Hibiscus) — Delicate Beauty
• Rose (Leaf) — You May Hope
• Rose (Pink) — Perfect Happiness, Please Believe Me
• Rose (Red) — Love, I Love You
• Rose (Tea) — I'll Remember Always
• Rose (Thornless) — Love at First Sight
• Rose (White) — Innocence and Purity, I am Worthy of You, You're Heavenly, Secrecy and Silence
• Rose (White and Red Mixed) — Unity, Flower Emblem of England
• Rose (White-Dried) — Death is Preferable to Loss of Virtue
• Rose (White-Withered) — Transient Impression, Fleeting Beauty, You Made No Impression
• Rose (Yellow) — Decrease of Love, Jealousy, Try to Care
• Rosebud — Beauty and You, A Heart Innocent of Love
• Rosebud (Red) — Pure and Lovely
• Rosebud (White) — Girlhood
• Rosebud (Moss) — Confessions of Love
• Roses (Bouquet of Mature Blooms) — Gratitude
• Roses (Single Full Bloom) — I Love You, I Still Love You
• Roses (Garland or Crown of) — Beware of Virtue, Reward of Merit, Crown - Symbol of Superior Merit
• Roses (Musk Cluster) — Harming
• Smilax — Loveliness
• Snapdragon — Deception, Gracious Lady
• Spider Flower — Elope with Me
• Stephanotis — Happiness in Marriage, Desire to Travel
• Stock — Bonds of Affection, Promptness, You'll Always Be Beautiful to Me
• Sweetpea — Good-bye, Departure, Blissful Pleasure, Thank You for a LovelyTime
• Tulip (General) — Perfect Lover, Fame, Flower Emblem of Holland
• Tulip (Red) — Believe Me, Declaration of Love
• Tulip (Variegated) — Beautiful Eyes
• Tulip (Yellow) — There's Sunshine in Your Smile
• Violet — Modesty
• Violet (Blue) — Watchfulness, Faithfulness, I'll Always Be There
• Viscaria — Will You Dance with Me?
• Zinnia (Magenta) — Lasting Affection
• Zinnia (Mixed) — Thinking (or In Memory) or an Absent Friend
• Zinnia (Scarlet) — Constancy
• Zinnia (White) — Goodness
• Zinnia (Yellow) — Daily Remembrance