1981
Photographed at the Royal Horticultural Society's garden, Wisley.

1st April 2006
Photographed at the Alpine Garden Society's show, Exeter.

29th March 2008
Photographed at the Alpine Garden Society's show, Exeter.

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

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