This tree was planted from one of the seeds taken to space and back from the original.

From the past paragraph of that wikipedia page section: “ Seeds of the tree were sent by the European Space Agency into space to the International Space Station on the 2014-15 Principia mission with astronaut Tim Peake.[29][37] As part of the "Pips in Space" research, the seeds floated in microgravity for six months before returning to Earth in 2016 to be raised into young trees.”

Last time I was there someone had torn a branch off 🙄