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

15th April 2006
Photographed at the Royal Horticultural Society's garden, Wisley.

14th May 2006
Photographed at the Royal Horticultural Society's garden, Wisley.

19th April 2008
Photographed at the Royal Horticultural Society's garden, Wisley.

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

19th April 2009
Photographed at the Royal Botanic Gardens, Kew..

16th February 2010
Photographed at the RHS Plant and Design show, Vincent Square.

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

9th April 2011
Photographed at the Royal Horticultural Society's garden, Wisley.