I'm sure we grew some of this on a west facing sheltered bed once in Leicestershire. Turns out it was this that we grew - nothing to do with curry leaves! Helichrysum italicum: Curry herb This has nothing to do with curry leaves! The so-called “curry plant” of South European origin
See pictures here:
http://www.uni-graz.at/~katzer/engl/Murr_koe.html