The conservatory complex at Gardens by the Bay, Singapore, comprises two cooled conservatories – the Flower Dome and the Cloud Forest, situated along the edge of Marina Reservoir.
The conservatories are intended to be an energy efficient showcase of sustainable building technologies and to provide an all-weather edutainment space within the Gardens.
Both are very large (around 1 hectare (2.5 acres)) and the Flower Dome is the world’s largest columnless glasshouse.
The construction of the glasshouses is special in two ways. First of all by being able to have such large a glass-roof without additional interior support (such as columns). Secondly because the constructions aims strongly at minimizing the environmental footprint. Rainwater is collected from the surface and circulated in the cooling system which is connected to the Supertrees. The Supertrees are used both to vent hot air and to cool circulated water.
The Flower Dome is the lower but larger of the two, at 1.2 hectares (3.0 acres). It replicates a mild, dry climate and features plants found in the Mediterranean and other semi-arid tropical regions (e.g. parts of Australia, South America, South Africa).
The Flower Dome is 38 metres (125 ft) high and maintains a temperature between 23 °C and 25 °C, slightly lower at night.
The Flower Dome features seven different “gardens” as well as an olive grove with a bistro and a central changing display field has also been incorporated to enable flower shows and displays to be held within the conservatory.