First green is gold

Thornless boysenberry leaf

Robert Frost

Nature's first green is gold
Her hardest hue to hold.
Her early leaf's a flower;
But only so an hour.
Then leaf subsides to leaf.
So Eden sank to grief,
So dawn goes down to day.
Nothing gold can stay.

The first leaf this season, on the boysenberry. I was struck by the gold in the green, almost vibrating.When I revisit the Robert Frost poem, I always forget it ends with sadness, my interpretation of his piece.
Would you think it sadness? Is it possible to have loss without sadness?
I don't know. I do know first green is often gold, especially out in the chaparral after a good rain and especially after a fresh burn.  Funny, there I see the gold as a promise, one of hope.