It pays to cover all perennial beds with forest leaves or coarse manure in autumn, after clearing off the tops and litter. Even if some plants are hardy enough to winter safely without cover, they do better with it. The writer's experience favors the use of forest-tree leaves. They are nature's covering, and it is not. well to rake them all off in spring. If a part of them are worked into the soil each spring, it will prove a benefit to the plants by adding humus to the soil. In addition, the application on the surface of a good coating of barnyard manure, well rotted, at least once in two years, will prove beneficial.