14th February 1982
Photographed at the Royal Horticultural Society's garden, Wisley.

8th April 2009
Photographed at the Royal Horticultural Society's garden, Wisley.

24th April 2010
Photographed at the Royal Horticultural Society's garden, Wisley.

20th April 2012
Photographed at the Royal Horticultural Society's garden, Wisley.