This section is from the book "The Gardener's Monthly And Horticulturist V18", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
We have repeatedly called attention to the fact that a half starved tree, or one dried out in summer, is the first to die in a severe winter. An abundance of rich nutritious food is favorable to hardiness.
Under the heading of this note a correspondent of the Country Gentleman has an excellent article confirming this position. Clover and grass where well manured were green and healthy long after those under poorer circumstances were killed.