Turfgrass species: Tour: Common and Scientific name:

Kentucky bluegrass - Poa pratensis L.

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Plant characteristics

Growth Habit rhizomatous
Texture fine to medium, depending on cultivar
Density good to excellent
Color light to dark green

Useful identifying Characteristics

rhizomes; boat-shape leaf tip; folded vernation; transparent lines on either side of midvein

Uses

Kentucky bluegrass is the most widely used turfgrass in the Midwest US. It is used on athletic fields, home lawns, golf course fairways, parks, cemeteries.

Other Characteristics

Varieties Common type Improved types
Kenblue
Park
South Dakota Certified
A-34
Adelphi
Baron
Birka
Bonnieblue
Bristol
Eclipse
Enmundi
Glade
H-7
I-13
Majestic
Merit
Midnight
Mystic
Parade
Plush
Ram 1
Sydsport
Touchdown
Vantage
Victa
Seeding Rate 1 to 3 lb per 1000 sq.ft.

Reproduction

Life cycle perennial
Propagation seed, sod, or plugs (A-20)
(plugs extremely uncommon)
Seeds/lb 800,000 to 2,000,000 depending on cultivar

Adaptation

Sun/shade sun (conditions, need full sun 3 to 4 hours/day) to partial shade (select shade-tolerant cultivars)
Soil loams or sandy loams, silt loams
Moisture moderate moisture, turn brown during hot, dry weather
Mowing height 2" to 2 1/2"
(some cultivars will tolerate 3/4")
Fertility 2 to 4 lb N/1000 sq.ft./yr.

Special Problems

Common types:

- leafspot disease can limit success.

Improved types:

- fusarium blight is the most serious limitation to Kentucky bluegrass;
- high temperature tolerance can affect turf in the transition zone;
- absence of water in Summer can cause plants to go dormant;
- dollarspot is found on bluegrass, but is usually not severe;
- powdery mildew will cause deterioration of bluegrass in the shade