It is just likely injured from the heat. If you prune lightly, and take off any fully dead growth, it will likely recover. Just care for it as usual until it recovers. This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/vines/dutchmans-pipe/growing-dutchmans-pipe-vine.htm
Answered on July 26, 2019
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