Arborvitaes are a slow growing plant variety (generally less than 12 inches per year of new growth) .The Arborvitaes are hybrids so they are propagated by cuttings as they will not come back true from seed. One of the Arborvitae, the Green Giant, the Western Redcedar Tree, or botanically, the Thuja Plicata, is the favorite. Here is why:
The hardiness zone the Green Giant Arborvita tolerates is from zone 5 to zone 8. That’s where extreme cold temperatures get down to a temperate level of about 15 or 20 degrees in the winter (Zone 8), but also as low as a frigid level of 15 or 20 degrees below zero (zone 5). Continue Reading