I'm not sure a "long, bitter cold, dark winter" is necessary to produce those colours @janton. And, I for one, would prefer not to have one. A couple of cold months, and by that I mean English cold, would do me.
A few days of snow scattered amoungst it. Then onto Spring. Pefect! 😁
oh wow gillianpearce, it sounds like you guys have mild winters over there? I suppose the Queen orders them that way! lol.