Answer: I found two references. The first was in Hortus III - Nyctanthes arbor-tristis. This is a tropical shrub that would not be hardy in your area except as an annual or grown in a container and brought in for the winter.
The second was for Night-blooming jasmine, Cestrum elegans. This, too, is a tropical shrub, hardy to only Zone 10. This one is available from Logee's Greenhouses, 141 North STreet, Danielson, CT 06239, 888-330-8038. I could not find a source for Nyctanthes, but you might ask Logee's since they are purveyors of all sorts of wondrous tropical plants.
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