So were early autumn frosts and late spring freezes.
The first' killing frosts generally occur about the middle of October in the Ohio Valley region, and about the first of October in the higher plateau and mountain region; the average dates for the last killing frosts in the same localities are the middle and last of April respectively.
On the plains slight frosts occur occasionally, and ice is sometimes seen on the.
The young trees require protection from storms and late frosts even more than in England; the red pine of the north-eastern states, Pinus resinosa, answers well as a nurse, but the pitch pine and other species may be employed.
Coccinea, often confounded with the red oak, but with larger leaves, with long lobes ending in several acute points; they change to a brilliant scarlet with the first October frosts, giving one of the most striking of the various glowing tints that render the American forests so beautiful in autumn.
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