I have this weird strip on the sidewalk. Part is damaged sidewalk but the thin strip was actually left by the city either originally or after some sort of work. The issue is that it has to be mowed/weedwhacked. If I cut it out completely, it turns into a muddy mess when it rains (and all winter!). So, I'd like to strip it, and replace it with a groundcover...preferably evergreen. It would need to be heat tolerant, salt tolerant, and somewhat tolerant of foot traffic and dogs. Preferably lower in height. Does such a plant exist?