Some of the most common Evergreen Trees are Thuja Green Giant (Arborvitae), Nellie Stevens Holly, Leyland Cypress and Wichita Blue Juniper. And generally, most of these evergreen species do well in full sun. s
When selecting a location to plant your evergreens, the site conditions are the key to long-term tree survival. The other major things to consider are soil conditions, exposure to sun and wind, drainage, space constraints and hardiness zones.
Once you have selected the site, begin by digging a hole. The hole should be twice as large as the pot diameter as a guide. Place water inside the hole using a hose. Continue watering until the hole is approximately half-full with water, and then allow the soil to fully absorb the water. Gently tease apart and loosen the pot-bound root ball. Place the tree in the center of the hole, backfill, and water the surrounding area to settle the roots.
Use your hands to create a two-inch mound of soil that encircles the base. The circular ridge of soil should be the same diameter as the original hole. This ridge will prevent water from flowing away from the evergreens. Water the newly planted evergreens daily for the first month, unless there is significant rainfall weekly (one inch or more).
After that, you should only need to water when the soil is dry about 3 inches down.