"Natural fence" using large container garden planters...ideas?
I have a dog and am moving to a place that won't allow a fence or dog run. There's a small space out back I can cordon off by lining up tall containers with tall plants and/or trees. I also want to have a coupla rain barrels to use to capture greywater for the container garden "fence". If you can picture what I'm trying to do, what would you suggest me planting in tall heavy pots that would not only thrive but would grow fast and winter-over ok in coastal South Carolina? FYI...there's also a small shed out back that would "anchor" one corner. The space I'd like to cordon off for dog and patio use will be approx 40' at the widest point with two flanking sides of 10-15 ft. (The home itself is the "fourth side" and provides a solid wall to this future doggie pen/patio area.) Thanks all for any ideas, even outside the box ideas which are imho always fun. TIA for your help!