Planting Your Evergreen in the Landscape
Many evergreens are slow growing, so they can stay in pots for several seasons. But, eventually, any tree or shrub will need to be repotted in something bigger or planted into the landscape.
Removing the Plant from the Pot
Replant in early spring or in fall when plants are focused on root development and the cooler temperatures will create less stress for the plant. To remove the tree from the pot, tip the pot onto its side to slide the tree out with minimal damage. If the tree has become root bound (roots wound around the inside of the pot), score the root ball with a knife to stimulate new root growth — don’t break up the central root ball.
Watering
Water slowly and thoroughly after planting. Your goal is to have water seep down to the roots at the bottom of the root ball. A typical rain storm may soak the surface but not reach the entire root ball. When planted in the landscape, new shrubs and evergreens need watering twice a week from March to mid November the first year. Set your hose at the base of the trunk, turn the water to a very slow trickle, and let the water run 10 minutes each time
Fertilizer
The first year, you want your tree to focus on healthy root development, which will help it to thrive. Fertilizer will encourage more leaf and stem growth so wait until the second year before applying any fertilizer.
Quick Video
https://youtu.be/QYmgrw0PgLU