Answer: Based on your description, it is really difficult to make a recommendation. This vine is usually very sturdy with a strong constitution. However, if it did not establish successfully and begin to root fully then it probably would not manage to survive the winter. Too, it would depend on what was causing it to fail to thrive. If for example the location was overly wet, then the roots would probably have rotted and it would not return. Unfortunately, I really can't tell you what to expect. You might be able to dig down gently and take a look at the roots, if they seem healthy then it would probably be worth waiting for it to resprout. If the roots are rotted away, then replace it. It would be worth trying to determine why it failed, though, before replacing with the same plant in the same spot. Your local county extension and/or professionally trained nursery staff should be able to help you troubleshoot. I'm sorry I can't be more helpful.
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