I am a little late in the quire, but not last, I hope.My name is Trond, and I'm gardening in western Norway, at the coast of the North Sea, by a small fjord (not anything like the famous ones). The climate here is cool and wet. The warmest days in summer can reach almost 30C, but between 15 and 20 is normal. In winter we usually don't have snow except for a day or two. The coldest month is February with a mean temperature of +1C. (It is much colder (and warmer!) in the eastern part of the country.) (Don't know what you know about Norway.) The USDA hardiness zone system don't work well for me! I can grow some plants of Z7-8, and other Z4-5 die due to lack of summer warmth.
I have been member of NARGS for some years, but not participated in meetings, only the seed scheme. I intend to when I get time! I love to walk in mountains and have visited some interesting places.
This winter is bad! It is one of the worst for 100 years here with snow and freezing temperatures for weeks (down to - 16C in my garden, nothing for you I think), but my Southern Hemisphere shrubs don't like it. It has been the opposite in the far north (Svalbard) with the mean temperature more than +8C above normal and the air strip closed due to heavy rain!
I have a small "rock garden" at the roof of my shed but I grow more woodlanders. Well, this little presentation got a little too long - and if you got tired with my English (or American?) writing I'll better do it in Norwegian next time!