Thank you for your inquiry. The evergreens surrounding the “Fountain of Life” are Thuja occidentalis 'Smaragd'. They are commonly known as American arborvitae, Eastern arborvitae, Eastern white cedar or Northern white cedar, conical to narrow-pyramidal often single-trunked, evergreen tree that is native to eastern and central Canada south to northern Illinois, Ohio and New York with scattered populations further south in the Appalachians to North Carolina. Mature trees may reach 40-60' tall in the wild over time, but in cultivation typically grow much smaller to 20-30' tall.

T. o. ‘Smaragd’ can grow to a height of 12 to 14 feet, and spread of 3 to 4 feet

'Smaragd' is a semi-dwarf cultivar with a compact, narrowly pyramidal habit. Glossy bright green, scale-like foliage in flat sprays. Urn-shaped cones to 1/2" long mature in autumn to reddish brown. Most often seen as a 7-15' (infrequently to 20') tall shrub with a spread of 3-4'. Cultivar is synonymous with and sometimes called 'Emerald' or 'Emerald Green'.

Courtesy of NYBG Plant Information Service