Alba Roses are a group of very old roses and were already known to the Greeks and Romans. They are said to have been brought to Western Europe by the Roman armies. Alba roses are recognized by their tall, arching stems, beautiful greyish-blue foliage and white or pale pink flowers with excellent scent. Albas are presumable crosses of Rosa corymbifera (which is related to the dog rose) and the Damask rose. They only bloom (abundantly) in spring. They are tough shrubs, resistant to disease for the most part and many will flower in more shade than other rose groups and are extremely winter hardy.