Visitors to Gardens by the Bay at Marina Bay can look forward to seeing 162,900 plants comprising more than 200 species and varieties planted on 18 Supertrees, when they opens next year. Some of the bromeliads, orchids and tropical flowering climbers come from Brazil, Panama, Ecuador and Costa Rica. Ranging from 25 to 50 metres in height, some of the Supertrees will have environmentally-sustainable...