Answer: It does not sound like a location where grass would do well. Instead, a groundcover would be a better choice. In my experience English ivy and creeping myrtle (vinca minor) both do well on shady slopes. You might also consider a consultation with a landscape architect or other professional drainage expert to make sure the erosion is not going to adversely affect the trees or anything else on your property. Often visible erosion becomes worse fairly quickly and is the symptom of a more serious problem elsewhere on the property which is better corrected sooner than later.
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