'Emerald Green’ Arborvitae grows in a pyramidal form, with its foliage coming in flat sprays. Although it is not the fastest grower in its group, when mature, it is the perfect size for a privacy hedge or wind break. Better yet, whereas the leaves on many types of arborvitae turn bronze in winter, ‘Emerald Green’ is more likely to remain a nice green year-round. When planting, it is recommended to space plants 2-3 feet apart.