I'm looking for an evergreen groundcover that won't be decimated by deer. Ivy is decimated. Pachysandra and periwinkle seem do do well. I'd like to try Allegheny spurge, but first want to know whether deer avoid it like the Asian variety. Can I intersperse the two pachysandras or will the native be overwhelmed? I have acres to landscape, so I need all the practical advice I can get on sourcing and propagation. Thank you!