[Illustration: A lawn, with planting on the sides]
The first season the weeds will probably come up thickly, especially if the land is rich. These weeds should not be pulled, for whenever one is pulled out of the ground, many grass plants are rooted up and the surface is made uneven. The only way in which to keep down weeds is to mow them frequently with a Lawn mower. They will not appear in any great numbers the second year, unless there should be some perennial weeds, like dandelion or dock; and these may be pulled out the first fall or the following spring.
It is rare that one secures a perfectly good and uniform sod from one sowing of seed; especially is this true if the soil varies in different parts of the area. If the surface contour is satisfactory, it is unwise to dig up the areas on which the seed has not caught. It is best to rake them over with a steel rake in fall or spring, sowing on a little commercial fertilizer rather rich in nitrogen, and sow more seed. Nearly every Lawn will need patching in this way from year to year. If the Lawn is attended to in fall and spring by sowing grass seed, the weeds will rarely do serious mischief. When weeds are troublesome on the Lawn, it means that there is not sufficient grass, and every effort should be made to get more grass. Therefore, when the perennial weeds are pulled out, sow more grass seed.
[Illustration: A picturesque rill on the lawn]
When narrow-leaved plantain bothers, it is an indication that the land is too poor and dry for grass. In such cases, the land usually lacks humus or vegetable matter; and in various severe incursions of the plantain, it may be necessary to spade up the weedy areas and to work rotted manure into the soil. Usually, however, the plantain can be killed out by enriching the soil and sowing more grass seed. The common practice of sprinkling Lawns is nearly always pernicious, since the water is not supplied in sufficient amount to wet down very far, and the grass tends to make surface roots. When the watering is omitted the plants suffer. The more a Lawn is sprinkled, the more the grass depends upon the sprinkling. If it is necessary to water the Lawn, the water should be allowed to run directly from the hose until the surface area is completely soaked. It is best to do this at nightfall. When the water is applied by means of a sprinkler, a large part of it evaporates and does no good to the ground. The fundamental treatment of the Lawn is to have the land so deep and porous that the grass roots strike deep into the soil and do not need the surface water. A Lawn which is well made will need watering only in unusually dry times.