Ilex aquifolium Alaska is one of the most winter hardy cultivars of the Common Holly. A slow-growing evergreen tree, well known for its spiky leaves and red berries. Holly is a tough, and robust hedge or specimen shape and can handle the harshest of environments although it thrives best with the protection of other trees around it. Berries come on female plants, so be sure to plant a few to increase the chances of pollination. Ilex Alaska makes a very attractive, slow-growing spiky hedge that clips very well and is an ideal evergreen to include in mixed hedges too.