There is a shrub in a neighbour's front garden that knocks me out in January. I have no idea what it is but I can smell it several blocks away. I think it may be a Daphne. It is now very high - about 10 feet , and I always thought Daphnes were shorter than that. Whatever, it's gorgeous (though boring for the remaining 11 months of the year so hardly 'garden worthy' in a small London garden). Still, I may knock on their door and ask if I can attempt to take a cutting. I guess it would be easier to identify it and then buy my own, though! Any ideas anyone??