re: Property line screen, 25' - 30' long, ~6' - 7' tall. Suggestions?

I did 20 of them. I think they were 5 or 7 gallons. 5’ away from fence and 3’ apart as I wanted a hedge. Before I planted I killed the grass and layed a synthetic barrier down. Was actually leftover from roofing job. I cut holes in it where plants went. Then I used bricks to build a bed and filled with 4 yards of soil. I water them every few days and spray with fertilizer once a month. Neem oil 2-3x a year in late pm so it doesn’t burn the plants