The mute self-witness of its weight betrays.
A glance will serve to warn thee which is black,
Or what the hue of any. But hard it is
To track the signs of that pernicious cold:
Pines only, noxious yews, and ivies dark
At times reveal its traces.
All these rules
Regarding, let your land, ay, long before,
Scorch to the quick, and into trenches carve
The mighty mountains, and their upturned clods
Bare to the north wind, ere thou plant therein
The vine's prolific kindred. Fields whose soil
Is crumbling are the best: winds look to that,
And bitter hoar-frosts, and the delver's toil
Untiring, as he stirs the loosened glebe.
But those, whose vigilance no care escapes,
Search for a kindred site, where first to rear
A nursery for the trees, and eke whereto
Soon to translate them, lest the sudden shock
From their new mother the young plants estrange.
Nay, even the quarter of the sky they brand
Upon the bark, that each may be restored,
As erst it stood, here bore the southern heats,
Here turned its shoulder to the northern pole;
So strong is custom formed in early years.
Whether on hill or plain 'tis best to plant
Your vineyard first inquire. If on some plain
You measure out rich acres, then plant thick;
Thick planting makes no niggard of the vine;
But if on rising mound or sloping bill,