The origins of the emblem go back to Edmund of Langley in the 14th century, the 1st Duke of York and the founder of the House of York as a cadet branch of the then ruling House of Plantagenet. The actual symbolism behind the rose has religious connotations, it represents the Virgin Mary, who was called the Mystical Rose of Heaven. The Yorkist rose is white in colour, in Christian liturgical symbolism, white is the symbol of light, typifying innocence, purity, joy and glory. djk
White Roses: White is the color of purity, chastity and innocence. White flowers are generally associated with new beginnings and make an ideal accompaniment to a first-time bride walking down the aisle. White flowers can be used to convey sympathy or humility. They also are indicative of spirituality. Hence, white roses also follow suit.