Moonflowers and cold

I have a moonflower vine and today it looks like it is dying. Last night the temperature got to 33.8 (1C). Are moonflowers sensitive to cold ?
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Yep, they are summer time plants and die off in winter.
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"And for the second time in four million years, the monolith awoke."
Arthur C.Clarke 2062:odyssey three
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snipped-for-privacy@gmail.com expounded:

Very sensitive.
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Ann, Gardening in zone 6a
Just south of Boston, MA
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