Answer: I think your evergreen clematis will resprout from the roots, even after having the tops killed back by frost. However, if you want to replace it, Bignonia capreolata 'Tangerine Beauty' is native to the southern states but will grow well in the Pacific Northwest if provided with full sunshine and protected from strong winds. This plant is a vigorous grower and if the tops are killed by a hard frost, new shoots will be produced the following spring. The Lady Banks rose is about as hardy as evergreen clematis so you may or may not have better luck with it as a replacement.
Best wishes with your garden!
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