Then Aragorn laid his hand gently to the sapling, and lo! it seemed to hold only lightly to the earth, and it was removed without hurt; and Aragorn bore it back to the Citadel. Then the withered tree was uprooted, but with reverence; and they did not burn it, but laid it to rest in the silence of Rath Dínen. And Aragorn planted the new tree in the court by the fountain, and swiftly and gladly it began to grow; and when the month of June entered in it was laden with blossom.

‘The sign has been given,’ said Aragorn, ‘and the day is not far off.’ And he set watchmen upon the walls.

--The Return of the King, chapter 5: The Steward and the King (the third part of The Lord of the Rings, by JRR Tolkien)