ISN'T THE POLMORPHA PERSICARIA SOMETHING ELSE. HERE IN CORNWALL, ONT. CANADA IT GROWS SO GREAT. I HAVE ONE FOR A FEW YEARS AND SO DOES MY BROTHER. THEY SEEM TO HANDLE PART SHADE REALLY WELL TOO. I GROW GOATS BEARDS, AND HAVE DIVIDED IT FOR AN EXTRA PLANT OH THREE YEARS AGO. AS AWESOME AS THAT IS, POLYMORPHA BLOOMS LOVELY FOR MUCH LONGER, ALTHOUGH MUCH COURSER. THERE IS A MINIATURE GOATSBEARD TOO, WHICH I AM NOW TRYING. I HESITATED TO BUY THAT AS I LOVE TALL PLANTS (but i'm trying to get into shorter ones too). Of course astilbes dazzle in the shade with other colours and love shade even more, but the colour show is only two weeks. Another companion I just started last year is the Rodgersia. Others that compliment are spring plants and tulips, daffodils, giant alliums, hostas and false and real Solomon's Seals. I loved an English bluebell a couple years ago it lasted a year and a half. So lovely. RAVEN