Hepatica

Most of the Hepaticas here are blue, of course, but the pink ones are easy to find as well at his place - Linnaeus Hammarby. I've read earlier that the pink colour is due to the pH value in soil, but according to the newest knowledge the colour is a matter of a genetic variation instead.

Blue hepaticas in the extra blip. The place: Linnaeus' Hammarby a few kilometers outside Uppsala.