Just now, I was doing a web search for what turned out to be the surprisingly tall order of Clethra cultivars available in Britain. And what did I find?
I AM FLABBERGASTED. WHAT HAS alnifolia 'Hummingbird' DONE TO DESERVE THIS?! I have never had that response to a plant search before, let alone with the (admittedly crap) country filter set to "UK only". Bloody hell.