I want to say go with Thistle but I guess you could also do Tistel if that if how it is spelled where you are living. But if you plan on moving back someday to a place where the spelling is Thistle then I still stand by spelling it Thistle.
Also I don't personally find the name
Rain to be depressing. I like it when it rains. Truly having any type of weather for too long makes me eventually annoyed and wishing for a change. I love rain and everyone I know does as well. But I get tried of rain after having too many months of it. I'm certain if I move some place where it snows rather than rains in the winter that I'll probably be getting tired of the snow near the end of winter. I also get tired of the heat after having too many sunny dry days in the summer.
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