Spring Treatment

Every spring the lawn should be firmed by means of a roller, or, if the area is small, by means of a pounder, or the back of a spade in the hands of a vigorous man. The lawn-mower itself tends to pack the surface. If there are little irregularities in the surface, caused by depressions of an inch or so, and the highest places are not above the contour-line of the lawn, the surface may be brought to level by spreading fine, mellow soil over it, thereby filling up the depressions. The grass will quickly grow through this soil. Little hummocks may be cut off, some of the earth removed, and the sod replaced.

Watering Lawns

The common watering of lawns by means of lawn sprinklers usually does more harm than good. This results from the fact that the watering is generally done in clear weather, and the water is thrown through the air in very fine spray, so that a considerable part of it is lost in vapor. The ground is also hot, and the water does not pass deep into the soil. If the lawn is watered at all, it should be soaked; turn on the hose at nightfall and let it run until the land is wet as deep as it is dry, then move the hose to another place. A thorough soaking like this, a few times in a dry summer, will do more good than sprinkling every day. If the land is deeply prepared in the first place, so that the roots strike far into the soil, there is rarely need of watering unless the place is arid, the season unusually dry, or the moisture sucked out by trees. The surface sprinkling engenders a tendency of roots to start near the surface, and therefore the more the lawn is lightly watered, the greater is the necessity for watering it.

Sodding The Lawn

Persons who desire to secure a lawn very quickly may sod the area rather than seed it, although the most permanent results are usually secured by seeding. Sodding, however, is expensive, and is to be used only about the borders of the place, near buildings, or in areas in which the owner can afford to expend considerable money. The best sod is that which is secured from an old pasture, and for two or three reasons. In the first place, it is the right kind of grass, the June-grass (in the North) being the species that often-est runs into pastures and crowds out other plants. Again, it has been so closely eaten down, especially if it has been pastured by sheep, that it has made a very dense and well-filled sod, which can be rolled up in thin layers. In the third place, the soil in old pastures is likely to be rich from the droppings of animals. In taking sod, it is important that it be cut very thin. An inch and a half thick is usually ample. It is ordinarily rolled up in strips a foot wide and of any length that will allow the rolls to be handled by one or two men. A foot-wide board is laid upon the turf, and the sod cut along either edge of it.

One person then stands upon the strip of sod and rolls it towards himself, while another cuts it loose with a spade, as shown in Fig. 77. When the sod is laid, it is unrolled on the land and then firmly beaten down. Land that is to be sodded should be soft on top, so that the sod can be well pounded into it. If the sod is not well pounded down, it will settle unevenly and present a bad surface, and will also dry out and perhaps not live through a dry spell. It is almost impossible to pound down sod too firm. If the land is freshly plowed, it is important that the borders that are sodded be an inch or two lower than the adjacent land, because the land will settle in the course of a few weeks. In a dry time, the sod may be covered from a half inch to an inch with fine, mellow soil as a mulch. ' The grass should grow through this soil without difficulty. Upon terraces and steep banks, the sod may be held in place by driving wooden pegs through it.

77. Cutting sod for a lawn.

A Combination Of Sodding And Seeding

An "economical sodding" is described in "American Garden" (Fig. 78): " To obtain sufficient sod of suitable quality for covering terrace-slopes or small blocks that for any reason cannot well be seeded is often a difficult matter. In the accompanying illustration we show how a surface of sod may be used to good advantage over a larger area than its real measurement represents. This is done by laying the sods, cut in strips from six to ten inches wide, in lines and cross-lines, and after filling the spaces with good soil, sowing these spaces with grass-seed. Should the catch of seed for any reason be poor, the sod of the strips will tend to spread over the spaces between them, and failure to obtain a good sward within a reasonable time is almost out of the question. Also, if one needs sod and has no place from which to cut it except the lawn, by taking up blocks of sod, leaving strips and cross-strips, and treating the surface as described, the bare places are soon covered with green".

78. Economical sodding, the spaces being seeded.

Sowing With Sod

Lawns may be sown with pieces of sods rather than with seeds. Sods may be cut up into bits an inch or two square, and these may be scattered broadcast over the area and rolled into the land. While it is preferable that the pieces should lie right side up, this is not necessary if they are cut thin, and sown when the weather is cool and moist. Sowing pieces of sod is good practice when it is difficult to secure a catch from seed.

If one were to maintain a permanent sod garden, at one side, for the selecting and growing of the very best sod (as he would grow a stock seed of corn or beans), this method should be the most rational of all procedures, at least until the time that we produce strains of lawn grass that come true from seeds.

Other Ground Covers

Under trees, and in other shady places, it may be necessary to cover the ground with something else than grass. Good plants for such uses are periwinkle (Vinca minor, an evergreen trailer, often called "running myrtle"), moneywort (Lysimachia nummvlaria), lily-of-the-valley, and various kinds of sedge or carex. In some dark or shady places, and under some kinds of trees, it is practically impossible to secure a good lawn, and one may be obliged to resort to decumbent bushes or other forms of planting.