Our Abelia Kaleidoscope is looking the worse for the wear too, but new growth should start showing soon. As soon as the risk of frost is over, you can prune back any dead foliage.
New growth is a good sign. Abelia Floribunda is more tender and usually need wall protection. They should be grown against a south/westerly wall unless you live somewhere very mild.
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"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw