Green Giant Arborvitae has green foliage. The scale-like leaves remain green throughout the winter. The shaggy brown bark adds an interesting dimension to the landscape. Green Giant Arborvitae is a dense multi-stemmed evergreen tree with a distinctive and refined pyramidal form. Its relatively fine texture sets it apart from other landscape plants with less refined foliage. This is a relatively low maintenance tree. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any dieback. Green Giant Arborvitae will grow to be about 30 feet tall at maturity, with a spread of 10 feet. It grows at a fast rate, and under ideal conditions can be expected to live for 50 years or more. This tree does best in full sun to partial shade.