I am sorry 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!
Your trumpet vine may have suffered from soggy, poorly drained, soil conditions. This excludes oxygen from the roots and they begin to die. The shock can result in wilting and leaf drop on the above ground portions of the plant. If the duration and severity of the problem was not too great the plant should recover and be fine.
Thanks for the question. Best wishes for a wonderful gardening season. Please stop in again soon!
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