The 28th edition of the orchid festival in London is celebrating Madagascar’s flowers, with 5,000 flowers used to create displays at the Royal Botanic Gardens, Kew. Madagascar is home to between 10,000 and 12,000 plant types, with 1 in 10 being orchids. Orchids are considered a barometer of the island’s health, as they are sensitive to environmental conditions. The festival includes a reconstruction of a field camp scientists use to study the island’s flora and fauna. However, orchids in Madagascar are threatened, with 76% being endangered and many species found in only one place on the island.