Yellow roses in the victorian times meant jealousy. Today they are a sign of friendship, joy, gladness and freedom. They are used for wedding showers. In Islamic folklore, they symbolize deceit, treachery, and adultery. Send a dozen white roses when you want to connote secrecy, innocence or purity.
White roses symbolize reverence and humility.
Virgin Mary is represented by a white rose as a symbol of her purity. In American culture, the white roses symbolize security and happiness and are used for weddings. In Scotland when the white rose bloomed in autumn it was seen as a sign of early marriage. In Wales, white roses represent innocence and silence, and are often placed on the grave of a young child. In Vietnam, the white rose is worn on Mother's Day for those whose mothers have passed away Red rose is worn on Mother's Day for those with mothers still alive.