Emerald green arborvitae, on the other hard, is a standout plant to consider for adding privacy to a small yard, or if you desire a more elegant privacy hedge. Unlike the towering 'Green Giant ...

Emerald Green Arborvitae. Vitali Laurentsik / Getty Images. Emerald green arborvitae (Thuja occidentalis 'Smaragd') is known for its bright emerald green foliage that retains its color year-round.