Evaluate the extent of shade in the proposed planting spot. Determine if the area is in full, deep shade all day, gets morning or afternoon sun or if it receives dappled shade from deciduous trees overhead.
Determine whether or not the location is protected from harsh, drying winds. Some varieties of evergreens require protection from excessive wind.
Dig a hole in the planting site about 12 inches deep to evaluate the site's drainage. Fill it with water and note the length of time the water takes to drain. If water remains in the hole after 30 minutes, the site has poor drainage.
Conduct a soil test by sending a sample to your local agricultural extension office. They will test the soil and make recommendations for improving the structure of the soil and adjusting its pH to a level beneficial for growing evergreens.
Use the information gathered in Steps 1 through 4 to consult catalogs from nursery and seed companies. These catalogs detail the optimal growing conditions for each plant or seed they offer for sale. Choose evergreens that most closely match the specific conditions of your site and climate.