Karen Clayton, a Kew Diploma Student in horticulture, arranges an orchid in Kew Gardens' 'Tropical Extravaganza Festival 2011' on February 3, 2011 in London, England.

The exhibition of tropical flora in the Princess of Wales Conservatory at the Royal Botanical Gardens, Kew opens to the public on February 5, 2011. The Tropical Extravaganza marks the UN International Year of Forests and features over 7000 tropical plants including over 3000 orchids which have taken over 2270 man-hours to arrange.