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.
Determine how high you want your screen. Put a ladder or have someone stand where you are considering placing the hedge, this will let you visually see how high you want your screen. Popular Evergreen Tall Tree Hedges American Arborvitae is a popular tree hedge but can grow 40' to 60' tall. Green Giant Arborvitae is a popular fast growing hedge that can grow up to 60' tall. Popular Evergreen Shrub Hedges Emerald Arborvitae grows 10' to 15' but can be trimmed shorter.