It is unusual and unnecessary for homeowners to buy different sorts of grass seeds separately and mix them. Commercial grass seed mixtures, if wisely selected, are perfectly satisfactory. In all regions such mixtures, compounded with special thought given to local soils and climates, are available. All that is really necessary is to choose one best adapted to your own garden for sun or shade, for example, or for particularly dry soils.

The most important point to remember is to avoid cheap mixtures. The cost of the seed is but a small proportion of the cost of making a new lawn. It is much better to sow a high-priced mixture thinly than a cheap mixture too thickly (as most beginners do). As a matter of fact, because cheaper mixtures contain bigger proportions of grasses with large seeds, you will probably get as many potential grass plants in a dollar's worth of an expensive mixture as in a dollar's worth of a cheap one.

Cheap grass seed mixtures are largely composed of the less permanent grasses, the kinds least costly for the seedsmen or packager to buy. It has to be that way. Good seeds of desirable varieties are comparatively expensive. They cannot be sold to compete with cheaper types. Percentages count, and even cheap seed mixtures usually contain some bluegrass and perhaps some bents and fescues. The point is, how do the good seeds compare in proportion to rye-grass, timothy and other quick growers? A total of more than 30 percent of
temporary grasses is usually the maximum permissible in satisfactory lawn seed mixtures, although the distinguished turf specialist Dr. Howard B. Sprague recommends a "standard mixture for soils of average to good fertility and sunny exposure" that includes 40 percent temporary grasses. This mixture consists of 45 percent Kentucky bluegrass, 10 percent colonial bent grass, 25 percent redtop, 5 percent white clover and 15 percent perennial ryegrass.

In some areas the law requires that lawn seed mixtures be labeled with the names and percentages of the grasses they contain and also the percentages of germination that may be expected. These are protections for the buyer. Study them carefully when comparing prices.

Beware especially of mixtures that are advertised and offered on the basis of "quick" results. They usually contain much too high proportions of quick growers of a temporary nature.
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