Answer: The vine will always need a support of some sort, unless you allow it to scramble its way up and over the roof. You might consider using a heavy post and stout trellis of some kind placed parallel to the wall of the garage. You might also consider training it to stand alone as a standard. This vine will continue to become larger and stronger and ultimately much heavier, so you probably do not want it to be supported by the building in the long run. In the meantime, keep up with that pruning!
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