1981
Photographed at the Royal Botanic Gardens, Kew.
19th April 2008
Photographed at the Royal Horticultural Society's garden, Wisley.
19th April 2008
Photographed at the Royal Horticultural Society's garden, Wisley.
25th September 2010
Photographed at the Royal Horticultural Society's garden, Wisley.
25th September 2010
Photographed at the Royal Horticultural Society's garden, Wisley.