Can one ever have too many Begonia grandis?  Well, maybe, but they are super easy to pull out or transplant and I have done both of these things!  Begonia grandis 'Heron's Pirouette' is an introduction made from wild-collected seed from Dan Hinkley's 1997 expedition to Japan.  The flower clusters are excessively large and flowering begins in July and continues non-stop until fall.