The science of Turf from ProSeed

Kentucky Bluegrass turf

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Alexa is an improved, very dark green Kentucky bluegrass variety classified as a “Midnight type” of improved Kentucky bluegrass that exhibits a compact short plant height and medium-leaf texture. Alexa exhibits late spring green-up and is very tolerant of low mowing heights. It is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. Alexa is adapted to a wide range of soils and climatic conditions.

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Atlantis is custom Kentucky bluegrass blend containing three or more improved Kentucky bluegrass varieties. Approximately 50% of this blend contains “Shamrock type” Kentucky bluegrass with the remainder of the blend containing two or more “BVMG type” Kentucky bluegrasses. Atlantis is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. It is adapted to a wide range of soils and climatic conditions.

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TWCA certified drought resistant! Diva is an improved, dark green Kentucky bluegrass variety classified as a “Compact type” of improved Kentucky bluegrass that exhibits a compact short plant height and medium to fine-leaf texture. Diva exhibits early spring green-up, leaf spot resistance and moderate susceptibility to billbug. It is a persistent, attractive, winter hardy grass that uses LESS water while maintaining green cover.

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Dragon is an improved moderately dark green Kentucky bluegrass variety classified as a “BVMG Type” of improved Kentucky bluegrass that exhibits a compact intermediate plant height and medium to wide leaf texture. Dragon is a large seeded Kentucky bluegrass that is competitively priced. It is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. Dragon is adapted to a wide range of soils and climatic conditions.

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Ginney is an improved very dark green variety classified as a “Midnight type” of improved Kentucky bluegrass that exhibits a compact short plant height and medium leaf texture. Ginney exhibits late spring green-up and is very tolerant of low mowing heights. It is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. It is adapted to a wide range of soils and climatic conditions.

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Guinness is a moderately dark green Kentucky bluegrass variety classified as a “Shamrock type” of improved Kentucky bluegrass that exhibits early spring green-up, fine leaf texture and the fastest establishment speed of Kentucky bluegrass varieties. It is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. It is adapted to a wide range of soils and climatic conditions.

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Ken Blue may be labeled as common / VNS (Variety not stated) due to the requirements of some state agricultural regulations. Ken Blue is a basic Kentucky Bluegrass variety. There are many newer improved types that have better turf advantages (better color / texture / disease resistance). Ken Blue is primarily used because it is very economical in price and is used where turf quality is not as important.

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Merit Kentucky bluegrass is guaranteed to be free of coarse grasses, free of noxious weeds, have excellent sod strength, and outstanding seedling vigor. Merit Kentucky bluegrass is marketed in Canada as Regent Kentucky Bluegrass.

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Mystere is an improved moderately dark green variety classified as an “America type” of improved Kentucky bluegrass that exhibits a compact, short, fine leaf texture. It is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. Mystere is adapted to a wide range of soils and climatic conditions.

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Preakness is a time-honored and fully tested Kentucky bluegrass variety classified as a “Mid-Atlantic type”. It exhibits a compact plant height, medium-high tiller density and medium leaf texture. Most importantly Preakness has deep, extensive roots and rhizomes that mine subsoil moisture and provide improved heat and stress tolerance in regions where Kentucky bluegrass is marginally adapted. It is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. It is adapted to a wide range of soils and climatic conditions.

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Princeton 105 is an improved moderately dark green variety classified as a “Compact type” of improved Kentucky bluegrass. It exhibits the best traffic tolerance among commercially available Kentucky bluegrass varieties in our industry. It is a cold hardy, persistent, attractive grass that through the development of an extensive rhizome system forms a well-knit, durable sod. Princeton 105 is adapted to a wide range of soils and climatic conditions.

TWCA, turfgrass water conservation alliance

Midnight Types

Within the Compact Type family, this group has very long winter dormancy, late spring green-up, very dark green turf color, good heat tolerance, but are susceptible to powdery mildew.

Examples: Ginney, Alexa, Midnight, NuGlade, Quantum Leap, Total Eclipse, and Award

American Types

Within the Compact Type a number of varieties exhibit growth and performance similar to American. These varieties have fine leaf texture and higher tiller density than other compact type varieties. American Types in contrast to Midnight Types have good resistance to powdery mildew.

Examples: Apollo, American, Unique, Mystere, and Bedazzled

BVMG Types

This group has high speed yield potential and generally produces medium to good quality turf in the absence of stripe smut. The BVMG Types generally are very stemmy in early spring. This group also has poor winter color, long winter dormancy, and suffers from significant billbug damage.

Examples: Dragon, Baron, Victa, Merit

Shamrock Type:

Similar to the BVMG Types with high seed yield potential, but unlike the BVMG, Shamrock types exhibit good resistance to stripe smut.

Examples: Guinness and Shamrock

BVMG Types

This group has high speed yield potential and generally produces medium to good quality turf in the absence of stripe smut. The BVMG Types generally are very stemmy in early spring. This group also has poor winter color, long winter dormancy, and suffers from significant billbug damage.

Examples: Dragon, Baron, Victa, Merit

Shamrock Types

Similar to the BVMG Types with high seed yield potential, but unlike the BVMG, Shamrock types exhibit good resistance to stripe smut.

Examples: Guinness and Shamrock

Compact Types

Low compact growth and good leaf spot resistance. This group has long winter dormancy (except P-105) and good stripe smut resistance.

Examples: Princeton-105, Diva, Moonlight, Blackstone, Apex, Glade, Alpin

Mid-Atlantic Types

This group forms vigorous turf of medium density with deep, extensive root and rhizome systems. This group has moderate susceptibility to leaf spot, but has excellent ability to recover from leaf spot and other stress due to the deep extensive rhizomes system. This group has great tolerance to heat and summer stress.

Examples: Eagleton, Preakness, Hunnington, and Livingston

Common Types

Generally erect growing types with narrow leaf blades. All common types are susceptible to leaf spot and may be extensively damaged by this disease during the cool, humid conditions of winter and spring.

Examples: Kenblue