Published on July 10, 2015, in Information & Tips.

Typical cool season grass types include:

Bentgrass was originally cultivated for use on golf course greens. An important advantage it has is that it tolerates extremely close mowing very well. In fact, if you don’t mow this grass close enough and allow it to grow to a normal height, it will take on an shaggy appearance.

Kentucky Bluegrass  is the most common cool season grass and probably the best known. The grass will go dormant in hot, dry weather as well as during the cold winter months common in North America. It does poorly in extremely shady areas and is not recommended for extremely hot climates. This grass will require supplemental irrigation during hot, dry periods.

Rough Bluegrass  is a yellowish-green grass with soft leaf blades which are glossy beneath and have a narrow boat-shaped tip. It spreads by stolons and forms dense, thick patches. The leaf blades are upright at first, but tend to lay down and mat as the patches become older. Because the root system is shallow, the patches are easily pulled up in tufts or clumps. This grass thrives when cool, moist conditions prevail, and when management is high.

Red Fescue is used in northern and temperate areas. This is a cool-season grass used in cool, shaded, mountain sites, such as camps, resorts, and cabins where low-input of mowing, fertilization, and irrigation is desired. Red fescue prefers shadier and cooler areas than most other cool season grasses.  It has non-aggressive tendencies and looks good in un-mown conditions such as along roadways.

Annual (Italian) Ryegrass is often found in low priced grass seed. This grass germinates quickly and can be used as a temporary ground cover while the slower growing bluegrass plants take hold. This grass is used mostly as a forage plant for animals. DON’T plant grasses intended for home use in pasture areas, as certain toxins could be harmful to grazing animals.

Perennial Ryegrass  is used as an overseed to maintain winter green in the lawn after the warm season grasses go dormant. However, it will not survive the summer heat. The ryegrasses are best adapted to moist, cool environments where temperatures are not extreme in the winter or summer.

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