Unknown plant no3

hallo, southern shores of lake balaton, hungary. am not familiar with the flora hereabouts and i keep coming across plants i aint seen before.
This one lives on the edge of a reed-bed with its head in partial sun but feet near the water's edge. One strong stem of about 1metre then fans out into leaves and lovely pink flower-heads. Its really lovely! Any idea what it is?
thanks, Karaman

 

Would have liked to see clear pics of the flowers and leaves.
Looks like Eupatorium sp.

eupatorium - Google Search

 

not sure, if it is its the perfoliatum variety as the flower-heads are quite small but lots of them - will take better pics when it stops raining! Thanks, its a big help, karaman

 

Could it be a Veronica? The leaves are similar.

 

Do please add clear close ups to show the flowers and the leaves.

 

Looks like Caryopteris to me. Or a Spirea.

 

It looks like a Mint to me in flower.Try rubbing some of the leaves and see what scent you get off of it.It should smell like the Mint you add to peas and new potatoes although there are quiet a few different types the ones that grow in damp conditions and they should be in flower at this time of the year