Answer: Podranea species do tolerate light frost -- they thrive in the subtropical climates in North American, but I don't think they'd do well in Oklahoma. If you have a greenhouse or conservatory to grow them in, they'll do fine. One source is Woodlanders, Inc., 1128 Colleton Avenue, Aiken, SC 29801
Telephone 803-648-7522. Best of luck!
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