The Temperate House at Kew Gardens was due to shut because of its deteriorating state. However, multi-million pound grants from the Heritage Lottery Fund, Department for Environment, Food and Rural Affairs and private donations means a five-year restoration scheme can now go ahead.
The 150 year-old Grade 1 listed building is home to the South African Cycad and the Chilean Wine Palm, the world's tallest glasshouse plant.
Martin Stew spoke to the Head of Glasshouses at Kew Gardens, Greg Redwood.
More top news
London mayor Boris Johnson delegated the final decision to a deputy after publicly supporting the project.
A man who fired at officers from the National Crime Agency has been convicted at the Old Bailey.
Want to know its posh name? It's a 'Track Retrieval Device'.