Red Roses + White Roses: An indication of bonding and harmony.

White
In general, white signifies purity, innocence and honor. Originally, white roses were the symbol of true love that is now conveyed through red roses. White roses are often seen at weddings, so they have also become associated with unity and virtue.

Red
Red is the most popular rose color and is symbolic of love, romance and passion. The color red itself is often associated with the Greek and Roman goddess of love. Sending a bouquet of red roses is considered the ultimate way to say, “I love you.”