Nature Taking Over

This is part of a sign at one of the university car parks.  The word here is  the same in English and Swedish so you don’t need a translation if you can see what the word is!
The sign has been here for around ten years and nature is well on the way with her colonising project.  The good news?  Lichen grows best in clean air so it seems we don’t have worry too much about pollution in Härnösand!
The extra photo shows the full sign which says…
Reserved for (car with) motor warmer permission 1/11 - 31/3.