24th February 2007
Photographed at the Royal Horticultural Society's garden, Wisley.

6th February 2010
Photographed at the Royal Horticultural Society's garden, Wisley.

2nd March 2012
Photographed at the Royal Horticultural Society's garden, Wisley.

17th February 2013
Photographed at the Royal Horticultural Society's garden, Wisley.

18th February 2013
Photographed at the Royal Botanic Gardens, Kew.