God made a little Gentian — Frost-Grape

God made a little Gentian-1
It tried-to be a Rose-
And failed-and all the Summer laughed-
But just before the Snows

There rose a Purple Creature-5
That ravished all the Hill-
And Summer hid her Forehead-
And Mockery-was still-

The Frosts were her condition-9
The Tyrian would not come
Until the North-invoke it-
Creator-Shall I-bloom?
(F.520/J.442)
[1, 2] Gentian, Rose:: a hint on GRape.
[5] Pruple:: the color of frost-grape.
[9] Frosts, condition:: frost-grapes that ripen after the first frost.

There is a kind of grape, which grows spontaneously in many parts of New England, called Frost-grape, from the circumstance of its never coming to maturity till ripened by the frosts of autumn. ─ The New England Farmer, Volume V (1827)

They had not proceeded far from the forest, ere they discovered, at considerable distance, profuse clusters of the purple frost-grape, peeping out amid brown rocks, and faded foliage. ─ The Juvenile Miscellany (1829)