What is the name of this plant?
This looks like some species of Phytolacca to me.

It's possibly Phytolacca americana, which is native to the US (in fact it's an enthusiastic 'volunteer' in my garden) but naturalized in Europe.

If you still have any in the ground, once they ripen, the berries are intensely purple and can be used as dye (or even eaten?)



Mark A. Nienaber &amp; John W. Thieret. Phytolaccaceae.  In: Flora of North America Editorial Committee, eds.  1993+.  Flora of North America North of Mexico. New York and Oxford. (link goes to entry of P. americana)