World’s largest Victorian glasshouse reopened in London

May 04, 2018

The world’s largest Victorian glasshouse has finally reopened to the public with a spectacular unveiling by environmentalist Sir David Attenborough.

The Temperate House in London is officially back in business after a painstaking five-year restoration period that cost a whopping £49 million (AU$88 million).

The magnificent glasshouse first opened in 1863 and has become home to some of the rarest and most endangered plants around the world. The building is situated in the famous botanical garden, Kew Gardens, in southwest London and is regarded as the “true jewel in Kew’s crown”. 

The glasshouse contains some of the world rarest and most threatened plants. Source: Getty.
The glasshouse contains some of the world rarest and most endangered plants. Source: Getty.

The new and improved glasshouse is home to 10,000 rescued plants of around 1,500 species. Each plant was uprooted from its world temperate zone and transferred to the glasshouse with the upmost care and attention to detail. 

Visitors entering the stunning space will be taken on a trip around the world, where they’ll see the famous “loneliest tree in the world” from South Africa, or the spectacular, and incredibly rare, Dombeya mauritiana tree from Mauritius. This tree was previously thought to be extinct until a Kew staff member located and retrieved cuttings from a single growing tree in the island’s highlands.

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Certain plants that were hitting the roof prior to the renovation were replaced with smaller specimens that were bred from seeds, cuttings or grafts from their predecessors. The smaller plants will grow to their full capacity in the greenhouse before they are again replaced. This process is necessary to ensure sufficient light reaches the lower levels of plants.

Yesterday, the final tree was planted in the glasshouse marking the completion of the massive renovations.

Director of horticulture at Kew Gardens, Richard Barley, said, “It’s been amazing watching this project unfold, the building emerge gloriously and some of the world’s rarest plants safely reach their home. The Temperate House is a glistening cathedral where the new glass allows the sun to stream in and the ironwork has been restored to its glossy best.”

Kew Gardens horticulturalist, Emma Love, waters plants in the newly renovated Temperate House. Source: Getty.
Kew Gardens horticulturalist, Emma Love, waters plants in the newly renovated Temperate House. Source: Getty.

The complete restoration took a total of five years with the help of 400 staff and contractors. The tedious process saw 69,000 individual elements removed from the building for cleaning, repairs or replacement. The refurbishment was not exclusive to the plants however, as it also included the replacement of 15,000 panes of glass.

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Beloved naturalist Sir David Attenborough gushed over the glasshouse calling it the “most important botanical institute in the world”.

He said, “It is a breathtakingly beautiful space. These plants are wonderful… safe from peril. Kew does all sorts of things that nowhere else does. If you want to identify something, this is the ultimate authority worldwide.” 

Attenborough will officially reopen The Temperate House for visitors this Saturday.