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These buildings provide examples of retro-fitted extensive green roofs in the Guangdong region and demonstrate a particular Sedum cultivar suited for conditions similar to those found in Hong Kong. These examples appear to be showcase examples for the Chinese Government.

Emulating the extensive green roofs that are seen in Europe and Germany is dependent on finding plant material
which functions in much the same way (i.e. such as Sedums). Various local conditions (climate, typhoon winds, vigour of local invaders, etc.) make this a difficult exercise. However, a cultivar of Sedum lineare has been developed in Guangzhou which shows promising results in conditions very similar to Hong Kong. Sedums planted are 4 years old and show no signs of dying back or of being taken over by invaders. 95% roof coverage with soil depths of 30-40mm.


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