I have a stump in the yard that is driving me nuts. It's from a large spruce tree that was cut down about 4 years ago. It's dead but still solid. It's cut at ground level but the stump and roots around it are still visible and I can't cut with the lawn mower around it. I'd like to dump a foot of soil over top of it and plant something that runs and will blanket it. It's in full sun so I'm not sure what to use that would creep over top but not mind full sun.