This section is from the book "The Gardener's Monthly And Horticulturist V26", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
It has been often shown in these columns that the term " hardy " is a very misleading one, especially when applied to evergreens. These are naturally gregarious, that is to say, they grow up in colonies, where one protects the other from wind. In this case they will easily get through a temperature of 300 below zero without any trace of injury; but the cultivavor takes one and sets it out on the top of some bleak hill, where singly and alone it has to battle with the wind. The moisture is all dried out of it at little below the freezing point, and the owner writes to the papers that it is not "hardy." In his recent address at Rochester, Mr. Geo. Ellwanger very properly remarked on the importance of evergreen screens and belts to protect railroads from sweeping winds and snow drifts, as well as winter protection generally. The value of screens for tender trees was shown in the fact that the only specimens of the Sequoia or great tree of California, east of the Rocky mountains, which had grown fifty feet high without injury by winters, were on the grounds of Ellwanger & Barry, well sheltered by evergreens.