The key to the mystery is the seed analysis label. By law, the seed analysis label must appear on every package of seed sold. If the seed is sold in bulk amounts, the analysis will be printed on a tag tied to the handle of the storage container.
Although legal requirements vary somewhat from state to state, most analysis labels contain the following information:
Purity Purity is the percentage, by weight of pure grass seed. The label must show the percentage, by weight, of each species of grass in the mixture. This allows the consumer to compare the permanent with the nonpermanent grasses and the fine-textured with the coarse-textured grasses.
Percent germination This is the percentage of the pure seed that was capable of germination on the date tested. The date of testing is important and must be shown. If several months have passed since the germination test, the seed is less likely to germinate at the percentage indicated.
Crop seed This is the percentage, by weight, of cash crop seeds in the mixture. These are undesirable species for lawns.
Weeds This is the percentage, by weight, of weed seeds in the mixture. A seed qualifies as a weed seed if it has not been counted as a pure seed or crop seed.
Noxious weeds This is usually the number of noxious weed seeds per pound or ounce of weed seeds. Noxious weeds are those extremely undesirable and difficult to eradicate.
Inert material This is the percentage, by weight, of material in the package that will not grow. In low-priced seed mixes, it includes materials such as sand, chaff, or ground corncobs. Inert material may be
Pt’ fl’t TABLE 13-1. |
A Comparison Chart for Turfgrasses |
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Grass Species |
Cool Season or Warm Season |
Growth Habit |
Leaf Texture |
Mowing Height/ Inches |
Fertilization. Pounds of Nitrogen Per 1,000 Square Feet Per Year |
Bahiagrass |
Warm |
Rhizomatous |
Coarse |
11/2 to 2 |
1 to 4 |
Bermudagrass |
Warm |
Stoloniferous and rhizomatous |
Fine |
1 to 2 |
4 to 9 |
Bentgrass, Colonial |
Cool |
Bunch-type (with short stolons and rhizomes) |
Fine |
1/2 to 1 |
2 to 4 |
Bentgrass, Creeping |
Cool |
Stoloniferous |
Fine |
1/2 or less |
2 to 8 |
Bentgrass, Redtop (see Redtop) |
|||||
Bentgrass, Velvet |
Cool |
Stoloniferous |
Fine |
1/2 or less |
2 to 4 |
Bluegrass, Annual |
Cool |
Bunch-type or stoloniferous |
Fine |
1 |
2 to 6 |
Bluegrass, Canada |
Cool |
Rhizomatous |
Medium |
Does not mow well |
1 or less |
Bluegrass, Kentucky |
Cool |
Rhizomatous |
Fine |
1 to 21/2 |
2 to 6 |
Bluegrass, Rough |
Cool |
Stoloniferous |
Fine |
1 or less |
2 to 4 |
Bromegrass, Smooth |
Cool |
Rhizomatous |
Coarse |
Does not mow well |
1 or less |
Buffalograss |
Warm |
Stoloniferous |
Fine |
1/2 to 11/2 |
1 /2 to 2 |
Carpetgrass, Common |
Warm |
Stoloniferous |
Coarse |
1 to 2 |
1 to 2 |
Carpetgrass, Tropical |
Warm |
Stoloniferous |
Coarse |
1 to 2 |
1 to 2 |
Centipedegrass |
Warm |
Stoloniferous |
Medium |
1 to 2 |
1 to 2 |
Fescue, Chewings |
Cool |
Bunch-type |
Fine |
1 1/2 to 2 |
2 |
Soil Tolerances |
Climate Tolerances |
Uses |
How Established. If Seeded, Pounds Per 1,000 Square Feet |
Infertile, acidic, and sandy |
Subtropical and tropical |
Utility turf; good for use along roadways |
Seeded at 6 to 8 |
Does well on a wide range of soils |
Warm temperate and subtropical |
Sunny lawn areas; good general purpose turf for athletic fields, parks, home lawns |
Plugging or seeded at 1 to 11 /2 |
Moderately fertile, acidic, and sandy |
Temperate and seacoastal |
Areas where intensive cultivation is practical |
Seeded at 1/2 to 2 |
Fertile, acidic, and moist |
Subarctic and temperate |
Golf greens and other uses where intensive cultivation is practical |
Sprigging or seeded at 1/2 to 11/2 |
Moderately fertile, acidic, and sandy |
Temperate and seacoastal |
Shaded, intensively cultivated areas |
Seeded at 1/2 to 11/2 |
Fertile, neutral to slightly acidic |
Temperate and cool subtropical |
Not planted intentionally; but common in intensively cultivated turfs during spring and fall |
Does not apply |
Infertile, acidic, and droughty |
Subarctic and cool temperate |
A soil stabilizer |
Seeded at 1 to 2 |
Fertile, neutral to slightly acidic |
Subarctic, temperate, and cool subtropical |
Sunny lawn areas; good general purpose turf for athletic fields, parks, and home lawns |
Seeded at 1 to 2 |
Fertile and moist |
Subarctic and cool, shaded temperate |
Some use on shaded, poorly drained sites |
Seeded at 1 to 2 |
Infertile and droughty |
Dry and temperate |
A soil stabilizer |
Seeded at 1 to 2 |
Does well on a wide range of soils; tolerant of alkaline soils |
Dry temperate and subtropical |
Useful in semiarid sites as a general purpose lawn grass |
Seeded at 3 to 6 |
Infertile, acidic, and moist |
Subtropical and tropical |
Utility turf; good for use along roadways and as a soil stabilizer |
Seeded at 1 1/2 to 2V2 |
Infertile, acidic, and moist |
Humid subtropical and tropical |
Utility turf; good for use along roadways and as a soil stabilizer; can be used as a lawn grass in tropics |
Seeded at 1 1/2 to 2V2 |
Infertile, acidic, and sandy |
Subtropical and tropical |
Utility turf; also usable as a low – use lawn grass |
Seeded at 1/4 to 1/2 |
Infertile, acidic, and droughty |
Subarctic and temperate |
Shaded sites with poor soil |
Seeded at 4 to 8 |
(continues) |
TABLE 13-1. |
A Comparison Chart for Turfgrasses (Co |
ntinued) |
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Grass Species |
Cool Season or Warm Season |
Growth Habit |
Leaf Texture |
Mowing Height/ Inches |
Fertilization. Pounds of Nitrogen Per 1,000 Square Feet Per Year |
Fescue, Creeping Red |
Cool |
Rhizomatous |
Fine |
11/2 to 2 |
2 |
Fescue, Hard |
Cool |
Bunch-type |
Medium |
Does not mow well |
1 or less |
Fescue, Meadow |
Cool |
Bunch-type |
Coarse |
11/2 to 3 |
1 or less |
Fescue, Sheep |
Cool |
Bunch-type |
Fine |
Does not mow well |
1 or less |
Fescue, Tall |
Cool |
Bunch-type |
Medium to Coarse |
11/2 to 3 |
1 to 3 |
Gramagrass, Blue |
Warm |
Rhizomatous |
Fine |
Does not mow well |
1 or less |
Redtop (a bentgrass) |
Cool |
Rhizomatous |
Coarse |
11/2 to 3 |
1 to 2 |
Ryegrass, Annual |
Cool |
Bunch-type |
Medium |
11/2 to 2 |
2 to 4 |
Ryegrass, Perennial |
Cool |
Bunch-type |
Fine |
11/2 to 2 |
2 to 6 |
St. Augustinegrass |
Warm |
Stoloniferous |
Coarse |
1 to 21/2 |
2 to 6 |
Timothy, Common |
Cool |
Bunch-type |
Coarse |
1 to 2 |
3 to 6 |
Wheatgrass, Crested |
Cool |
Bunch-type |
Coarse |
11/2 to 3 |
1 to 3 |
Zoysiagrass (Japanese lawngrass) |
Warm |
Stoloniferous and rhizomatous |
Medium |
1/2 to 1 |
2 to 3 |
Zoysiagrass (Manilagrass) |
Warm |
Stoloniferous and rhizomatous |
Fine |
1 |
2 to 3 |
Zoysiagrass (Mascarenegrass) |
Warm |
Stoloniferous and rhizomatous |
Fine |
Does not mow well |
2 to 3 |
Soil Tolerances |
Climate Tolerances |
Uses |
How Established. If Seeded, Pounds Per 1,000 Square Feet |
Infertile, acidic, and droughty |
Subarctic and temperate |
Shaded sites |
Seeded at 3 to 5 |
Fertile and moist; not tolerant to droughty soil |
Moist and temperate |
A soil stabilizer |
Seeded at 4 to 8 |
Widely tolerant of all but droughty soils |
Moist and temperate |
Utility turf; good for use along roadways |
Seeded at 4 to 8 |
Infertile, acidic, well – drained, and droughty |
Dry and temperate |
A soil stabilizer |
Seeded at 3 to 5 |
Does well on a wide range of soils |
Warm temperate and subtropical |
Utility turf; good for use along road – ways; new cultivars (Brookston, Olympic, and Rebel) good for lawns |
Seeded at 4 to 8 |
Does well on a wide range of soils |
Dry and subtropical |
Utility turf; good for use along road – ways and in arid sites |
Seeded at 1 to 2 |
Does well on a wide range of soils |
Subarctic, temperate, and cool subtropical |
Utility turf; good for use along road – ways and in poorly drained areas |
Seeded at 1/2 to 2 |
Fertile, neutral to slightly acidic and moist |
Temperate and subtropical |
Useful for quick and temporary lawns in the temperate zone and for winter color in the subtropic zones |
Seeded at 4 to 6 |
Fertile, neutral to slightly acidic and moist |
Mild and temperate |
Used in mixed species lawns and as an athletic turf |
Seeded at 4 to 8 |
Does well on a wide range of soils |
Subtropical and tropical seacoastal |
A good lawn grass with excellent shade tolerance |
Sprigging |
Fertile, slightly acidic, and moist |
Subarctic and cool temperate |
Utility turf; good for athletic fields in cold regions where preferable species won’t survive |
Seeded at 1 to 2 |
Does well on a wide range of soils |
Subarctic and cool temperate |
Useful as a general purpose turf on droughty sites |
Seeded at 3 to 5 |
Does well on a wide range of soils |
Temperate, subtropical, and tropical |
Useful as a general purpose turf for home lawns, parks, and golf courses, especially in warmer regions |
Plugging |
Does well on a wide range of soils |
Subtropical and tropical |
A good lawn grass |
Plugging |
Does well on a wide range of soils |
Warm subtropical and tropical |
A soil stabilizer and groundcover |
Plugging |
Coarse-Textured Grasses None claimed Other Ingredients 5.87% inert matter
0. 29% weeds—no noxious weeds
It is likely that Mixture C would be the most expensive. It contains the highest percentage of fine-textured grasses, no coarse-textured grasses, no annual grasses, and the lowest percentage of weeds. Mixture A would probably cost the least since it contains a high percentage of coarse grasses and the greatest percentage of weeds. None of the mixtures is very poor in quality since none contain crop or noxious weed seeds.