Early spring is traditionally considered one of the best times to plant since the last winter frost has thawed and plants are leaving dormancy to begin their spring growth. Fall is the next best option since temperatures become mild and plants are poised to focus on developing strong root systems before cold weather.
Emerald Green Arborvitaes can actually be planted almost any time of year. As long as they have lots of water available in very well-draining soil, and enough time before winter to establish their root system, you can plant your new Emerald Arborvitaes when it best suits you. We would recommend planting your Thuja Emerald Greens anytime between the last spring frost and at least three weeks prior to the first winter frost.