I apologize for this delayed reply to your gardening question. The spring rush has brought a deluge of questions and we are working hard to catch up!
That plant can climb that distance without a problem. Allow the lines to get longer and then if they have a found the porch railing leave them over and tie them to a with some jute twine. They should be able to take it from there.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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