|Among the hardiest of the hollies hailing from northern Japan. 'Blue Girl' has a true holly look in a dense, shrubby, upright, pyramidal outline, with bright red berries, purple stems and extremely dark green foliage. Leaves are small, glossy and spiny. Needs rich, slightly acidic soil. This variety is cold hardy and faster growing than 'Blue Princess'. At maturity can reach a height of 15 feet.