I saw a few fantastic forms and relatives of this species when i was in Aus and it was one of my favourite species. None of the others seem to be available in the UK but they definitely should be. In particular, look out for the ACT form with more heavily ginger-felted buds and new shoots, which should be especially hardy.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/26698606@N03">peganum</a> from Henfield, England
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/peganum/11007006694/">Grevillea victoriae</a>