Castor Bean plants keep gophers away and they are attractive. Surround your garden with them. How can Alberta be rat free? Interesting. I think there were rats in Montana but I don't ever remember seeing any. Definitely had mice. We used traps. One night they were snapping the traps as fast as we could reset them. Coming in along the washing machine pipe from a crawl space. In the previous house , again my cat took care of any mouse house invasion.
I guess I have lived in more rural settings. We had the sonic mouse things in our Artists' resident house, but the director brought the mouse into his huge shop for the winter and fed them. Iceland is a strange place where contractors need to get an environmental impact statement for elf free zones. Really.
This kind of went south. I wouldn't want to trap any elves in my trap.We had one grad student at Alfred who built a cute little house for the mice and was feeding them. Tony Hepburn got wind of this. It didn't last long.
Had some good advice from Mark Cortnoy which I use and it works. People like pots at eye level. I would move away from the tables and build a couple of standing shelves. sold most of my pots from these shelves.