Artemisia lactiflora 'Weiße Dame'

Artemisia lactiflora 'Weiße Dame'. This is how the airy white flower is called in the middle of the picture, behind the dahlia.

In contrast to the other Artemisiae, this kind likes the cool and humid climate. It requires a good supply of water, but it does not need a constantly wet soil, like, say, a Ligularia. 

It rewards good soil, but at us it was also beautiful on sand.