Answer: China Boy and China girl hollies (Ilex x meserveae 'China Boy' and 'China Girl') are compact, upright, rounded shrubs which would work well for a short hedge. They are slow growing and rather small for hollies, reaching 2-3 ft high in 8 yrs; 6-7 ft in 20 yrs if not pruned.
Most well stocked nurseries will carry these hollies, or you can substitute with something similar. You'll want at least one male as a pollenizer for every 8-10 females in your hedging.
Best wishes with your new hollies.
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