We have a large [wider than 20' in some instances] vegetated island internal of parking lots and access roads. The intent is to plan grass in this area. Do we need to limit disturbance on these internal "green" islands w/in the parking lot or just limit site disturbance within 10' along the perimeter of the parking lot? Say this island is 23' wide; do I need to maintain a 3' wide disruption-free zone within that island? That would make no sense, logistically.

Thanks in advance.
Matthew