Thuja occidentalis – ‘American Pillar’ – New name, same great plant! Full Speed A Hedge ‘American Pillar’ arborvitae is a sport of ‘Hetz Wintergreen’ selected for its very rapid growth rate, dense branching structure, and tall, narrow habit. It maintains this useful desirable columnar shape with minimal pruning. It has tremendous potential in both the residential and commercial landscape market, and is an excellent specimen plant.
Plant in full sun to partial sun and in a location with a moist, well-drained soil made fertile through the use of soil amendments such as Wormgold, Alfalfa Gold or Sky Rocket. They will tolerate partial shade, but you will be happier with your plants’ performance if you give them enough sunshine. Tolerant enough of mildly acidic soil to be grouped with the acid-loving plants, but it is not overly fussy about soil pH and will perform just as well (maybe even a bit better) in ground that has a neutral pH.
Pruning: Prune in late winter or early spring to remove any browned growth. Heavy pruning is seldom needed.