I have some awful boys that live at the end of the garden. We have a 5 ft. fence and I have now planted some laurel for more privacy (which is only about 4 ft. ). My neighbour caught one of them trying to climb into my garden. I was wondering if there are any thorny plants that would grow in dark areas.
Is There a Thorny Plant That Grows in the Shade?
Eleutherococcus sieboldi is a type of Ginseng that has a thorny variety that does well in shade and can grow to 10' x 10', also there are several types of barberry that might fit your needs. Perhaps, you and your neighbors need to have a talk with these children's parents as well about respecting other people's property? Hope this helps.