Quote Originally Posted by Johanna
I always thought yellow roses meant "friendship" as opposed to "love". Has anyone else heard this?
About flower colors... yes to the yellow thing except of course as capecoddah pointed out, if the person is from Texas it is a different story as they have the "yellow rose of Texas"

Here is a listing of flowers colors and their meanings from an American company called Telefloral.

The pale blue hues of a hydrangea or the deep blues of an iris can calm worries and preoccupation representing peace, openness, and serenity, fresh floral arrangements filled with blue flowers offers a cooling antidote to anxiousness.

Think pink and you think of grace, gentility, and happiness. Regardless of the shape of the flower – from the tight, small buds of a pink garden rose to the delicate, open petals of a pink caellia in full bloom – pink blossoms convey youth, innocence, and joy.

With its origins tied to royalty and ceremony, purple flowers represent dignity, pride and success. Whether grouped alone in a bold range of rich hues or mixed in with other colors to provide depth and contrast, an arrangement filled with purple blooms represents accomplishment and admiration.

There’s an indisputable energy to the color red – an energy that has the power to transform an otherwise unassuming flower into the essence of desire, strength, and passionate love. With beauty, courage and heat as its symbolism, it’s no surprise that a bouquet filled with rich, red blooms knows no restraint.
Quote Originally Posted by [color=#FFFFFF
Often associated with innocence, humility, and reverence, white flowers evoke simple beauty. Whether they take their shape as the luxurious, silk petals of fragrant gardenias, the small, white bells of a lily of the valley, or the quiet drama of a dozen white roses, fresh floral arrangement dominated by white blossoms conveys modesty and elegance.[/color]]
Quote Originally Posted by [color=#FFFF00
There’s a good reason why it can feel all but impossible to refrain from smiling when you spot a bouquet of bright daffodils or a pot filled with sun-drenched chrysanthemums–the color yellow evokes feelings of joy and lightheartedness. Also a symbol of friendship, a bouquet bursting with yellow blooms sends a message of new beginnings and happiness.[/color]]
There’s nothing bashful about the color orange–its message is clear and blatantly proud. Symbolizing energy, enthusiasm, and warmth, an arrangement of blooms in this vibrant color conveys confidence, satisfaction and a passion for life.

Synonymous with nature–and the perfect complement to any other bloom–the color green represents health, resilience, good fortune and youth. Whether used to throw together a diverse mixture of shapes and hues or as a restful tone-on-tone bouquet, green flowers send a message of optimism and renewal.

While purple is the color of royalty, and pink the color of youth, lavender is femininity all grown up. Representing refinement, grace, and elegance, lavender holds an almost sacred place in nature—with violet flowers often considered the most delicate and precious. An arrangement filled with these genteel blossoms send a message of feminine beauty.