We have a few trees in our small (3-4 ft wide) "parking strip" (the area between the sidewalk and the street). There are quite a bit of surface roots that extend a few feet outside of the current mulch rings. Grass won't grow here so it's just a bare spot with sprawling feeder roots.
What I am looking for advice on is:
- should I extend the mulch rings outward to cover the roots?
- if "yes" to the above, how should the mulch "rings" be shaped? (since the parking strip is so narrow, they can't be round anymore if they are made wider)
- anything else to plant/landscape here since the rest of our parking strip is pretty healthy KBG? Meaning, instead of doing the larger mulch rings, is there ground cover that will do well in these areas where the roots won't let grass establish? Full sun and irrigated.
Here's a couple pictures of one of the areas: