Nenya or the Elessar?

[Inziladun]

Originally Posted by Galin

Galadriel appears to do something quite notable, getting Mallorns to grow East of the Misty Mountains -- notable in that they would not grow in Lindon that is, a very western part of Middle-earth and a remnant of the Drowned Lands, so to speak; and peopled by Elves, including High Elves -- and the Mallorn (with soil) of the Shire also hails from her of course.

Was this aided by Nenya? again I'm not positive, and maybe I'm not giving Galadriel enough credit. Perhaps it is because Galadriel is her great self, but in any case Nenya could be employed in the Third Age, before Cerin Amroth was raised at least (according to a passage in Unfinished Tales), and so the idea came into my head.

As to the flourishing of the Mallorn in the Shire, and the accelarated growth of the flora where the soil from Lórien was left, it seems that could not have been the work of Nenya. Sam's planting of the seed and use of the soil grains came after the destruction of the One, and subsequent loss of the Three's power. Unless it was due to some lingering effect of the Elessar, I'd have to ascribe the virtues of Sam's gift from Galadriel to her native power entirely.

'In this box there is earth from my orchard, and such blessing as Galadriel has still to bestow is upon it.'

FOTR Lothlórien (emphasis added)

She'd already handed off the Elessar to Aragorn at that point, notably.