The Rowallane Garden was chosen to plant the Chinese Goat Horn Tree back in 1919.
The garden is located near Saintfield County Down.
Ever since they planted the tree, gardeners have tended to it and hoped that some day it would flower.
It too 91 years, but the tree has finally flowered.
A bud appeared in June and they have been watching it develop into a flower ever since.
The flower, a very light white one opened up last weekend.
When the flower falls off, there will follow a fruit which will have the visual aspect of the horn of a goat. That is where the plant got its name.
As far as anyone knows, there are only two trees still living which are from the original Wilson seed that this one came from. One is in the Rowallane Garden and the other is at Birr Castle, which is in the County Offaly located in the Irish Republic.
Record has it that the rest of trees from the Wilson seeds died out during the mid part of the 20 Century.
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