I bought this plant as Filipendula hexapetala Flore Plena. http://www.bluestoneperennials...

Where should it go in the DB? Is it even spelled correctly?

It doesn't seem correct chelle, for a start 'flore pleno' usually means double flowers.

Secondly, Filipendula hexapetala is a synonym of Filipendula vulgaris ..

http://www.theplantlist.org/tp...

Which is on this site .. there is a Flore Pleno of vulgaris, double.

http://pss.uvm.edu/pss123/perf...

Let's see if we can track it down .. Grandiflora has large, white flowers .. but I'm only finding Filipendula vulgaris which looks like yours.

http://www.thewildflowersociet...

http://luirig.altervista.org/f...

http://www.google.co.uk/search...

JRsbugs said: .. but I'm only finding Filipendula vulgaris which looks like yours.

That's what I found as well.

I believe I should add it as simply, Filipendula vulgaris.

Thanks, again!