Areolar Tissue is loose connective tissue that consists of a meshwork of collagen, elastic tissue, and reticular fibres-with many connective tissue cells in between the meshwork of fibres. The fibres that form the mesh structure of areolar tissue include:
Normal growth rates for Emerald Green (Thuja occidentalis 'Smaragd') are between 6 to 12 per year once established and tapering off as they reach about 12' to 15'. I'd be suprised to see more than about 18 per year even in ideal conditions.
According to ArborDay.org, it stands 50â60 feet tall at maturity, with a spread of 12â20 feet. They add that its growth rate can be as fast as 3 feet per year. Not all types of arborvitae are tall and narrow in shape and a plain old green in color. T. occidentalis 'Golden Globe' bucks the trend on both counts, having a round shape and displaying foliage of a light golden color. It grows to be 3 feet high by 3 feet wide and is suitable for USDA zones 3-7.