Hedges

Question

Can you mix a rocket barberry with a globe barberry to make a hedge?

Answer 1

Yes, it is certainly possible to mix different species in creating a hedge/hedgerow. The two species may have different growth rates, so they may be better suited for an informal hedge. If you want to keep the sides of the two species even with each other to make a boxy hedge, this will take more maintenance.
http://extension.oregonstate.edu/gardening/node/998