When did 🧝Galadriel plant Mallorn nuts in Lothlórien?

[Elthir]

Near the end of the Lord of the Rings, Celeborn tells Aragorn, “May your doom be other than mine, and your treasure remain with you to the end!” It is normally assumed that he is wishing Aragorn a long life and then eternity with Arwen, but it might be that he knows Galadriel will soon return to Aman, leaving him in Middle-earth, where he chooses to stay.

Here I'm going to trust in the young wisdom of Elanor Galbasi

"Elanor was silent for some time before she spoke again. "I did not understand at first what Celeborn meant when he said goodbye to the King," she said. "But I think I do now. He knew that Lady Arwen would stay, but that Galadriel would leave him. I think it was very sad for him. And for you, dear Sam-dad". Her hand felt for his, and his brown hand clasped her slender fingers. "For your treasure went too. I am glad Frodo of the Ring saw me, but I wish I could remember seeing him."

JRRT (unused) Epilogue, Sauron Defeated

🐾