Balcony gardening as a screen
We will be on the 3rd floor of a condo with nothwest exposure and need to block out the side of the clubhouse year round. Will need to have an effective screening year round, so I assume that evergreens are best. Will need about 6 feet high and about 8 feet long. No water outlet. Any suggestions regarding large containers, such as resin, and what plantings would accomplish that effect?