Emerald Green Arborvitae

1. Planting: Emerald Green Thujas grow best in full sun, but they can withstand partial shade (afternoon sun is best in this case). And for best results, plant these trees six feet apart to enjoy their pyramid shape or four feet apart for a dense hedge.

When planting Emerald Green Thujas, dig a hole that is just as deep as the root ball and twice as wide. If the top of the root ball is lower than the surrounding soil, remove the tree and fill in part of the hole. Replace the tree and fill in the hole with the same soil you removed. You do not need to add anything to the soil. Mulch around the tree with shredded hardwood mulch. A layer three inches thick, extending three feet, around the tree is ideal.

Water your new tree by counting to 20 while holding the hose near the trunk or give the tree five watering cans full of water.

2. Watering: Water your new tree every day by holding a hose around it and counting to 20. If you don’t have a hose, five full large watering cans full of water will do. You’ll need to keep this up for the first two weeks.

The second two weeks, you can switch to watering every three days with the above method.

After the first month, water once a week unless it is dry and hot (no rain and temperatures above 80 degrees). If it is hot and dry, water twice a week.

After the first six months, the trees will be established and won’t need any extra water.

3. Pruning: The Emerald Green Thuja grows well without pruning. In fact, this is one tree that needs no pruning, other than to remove dead branches. If you do decide to hedge this tree, make sure that when you trim, the bottom of the tree is wider than the top. 

4. Fertilizing: This tree does not need extra fertilizer. If the leaves are not the right color, the problem is likely the soil pH. Test the pH and add aluminum sulfate if the pH is too high, and lime if the pH is too low. Normal pH is between 5.5-7.0.