Whether white clover or other seed should be sown with the grass seed is very largely a personal question. Some persons like it, and others do not. If it is desired, it may be sown directly after the grass seed is sown, at the rate of one to four quarts or more to the acre.
For special purposes, other grasses may be used for lawns. Various kinds of lawn mixtures are on the market, for particular uses, and some of them are very good.
A superintendent of parks in one of the Eastern cities gives the following experience on kinds of grass: “For the meadows on the large parks we generally use extra recleaned Kentucky blue-grass, red-top, and white clover, in the proportion of thirty pounds of blue-grass, thirty pounds of red-top, and ten pounds of white clover to the acre. Sometimes we use for smaller lawns the blue-grass and red-top without the white clover. We have used blue-grass, red-top, and Rhode Island bent in the proportion of twenty pounds each, and ten pounds of white clover to the acre, but the Rhode Island bent is so expensive that we rarely buy it. For grass in shady places, as in a grove, we use Kentucky blue-grass and rough-stalked meadow-grass (Poa trivialis) in equal parts at the rate of seventy pounds to the acre. On the golf links we use blue-grass without any mixture on some of the putting greens; sometimes we use Rhode Island bent, and on sandy greens we use red-top. We always buy each kind of seed separately and mix them, and are particular to get the best extra recleaned of each kind. Frequently we get the seed of three different dealers to secure the best.”
In most cases, the June-grass germinates and grows somewhat slowly, and it is usually advisable to sow four or five quarts of timothy grass to the acre with the June-grass seed. The timothy comes on quickly and makes a green the first year, and the June-grass soon crowds it out. It is not advisable to sow grain in the lawn as a nurse to the grass. If the land is well prepared and the seed is sown in the cool part of the year, the grass ought to grow much better without the other crops than with them. Lands that are hard and lacking in nitrogen may be benefited if crimson clover (four or five quarts) is sown with the grass seed. This will make a green the first year, and will break up the subsoil by its deep roots and supply nitrogen, and being an annual plant it does not become troublesome, if mown frequently enough to prevent seeding.
In the southern states, where June-grass does not thrive, Bermuda-grass is the leading species used for lawns; although there are two or three others, as the goose-grass of Florida, that may be used in special localities. Bermuda-grass is usually propagated by roots, but imported seed (said to be from Australia) is now available. The Bermuda-grass becomes reddish after frost; and English rye-grass may be sown on the Bermuda sod in August or September far south for winter green; in spring the Bermuda crowds it out.
The lawn should be seeded when the land is moist and the weather comparatively cool. It is ordinarily most advisable to grade the lawn in late summer or early fall, because the land is then comparatively dry and can be moved cheaply. The surface can also be got in condition, perhaps, for sowing late in September or early in October in the North; or, if the surface has required much filling, it is well to leave it in a somewhat unfinished state until spring, in order that the soft places may settle and then be refilled before the seeding is done. If the seed can be sown early in the fall, before the rains come, the grass should be large enough, except in northernmost localities, to withstand the winter; but it is generally most desirable to sow in very early spring. If the land has been thoroughly prepared in the fall, the seed may be sown on one of the late light snows in spring and as the snow melts the seed is carried into the land, and germinates very quickly. If the seed is sown when the land is loose and workable, it should be raked in; and if the weather promises to be dry or the sowing is late, the surface should be rolled.
The seeding is usually done broadcast by hand on all small areas, the sower going both ways (at right angles) across the area to lessen the likelihood of missing any part. Steep banks are sometimes sown with seed that is mixed in mold or earth to which water is added until the material will just run through the spout of a watering-can; the material is then poured on the surface, which is first made loose.
Inasmuch as we desire to secure many very fine stalks of grass rather than a few large ones, it is essential that the seed be sown very thick. Three to five bushels to the acre is the ordinary application of grass seed (page 79).