Are there different cultivars of red twig dogwood? I am wanting to plant several compact varieties of these shrubs, but I am concerned that at my cabin there is as variety that snakes along the ground, seems to spread by underground roots and is not pretty at all. I have seen some that seem to maintain a more compact, upright appearance. Is this just do to diligent pruning or are there different varietes? I am in zones 3-4. Thanks.