Cool Season Grasses
The grasses that thrive in cool season areas can withstand cold winters, but most types languish in hot summers. Lawns of these grasses usually started from seed. Some are available as sod. Seeds come either in mixtures and blends of several different grasses or as individual types.
Lawns composed of a single grass type are the most uniform in appearance, giving you the maximum expression of whatever characteristic you select. A fine texture, or a tough play surface. The main disadvantage of a single type grass lawn is that it could be wiped out if that one grass were susceptible to a pest or disease in your area or sensitive to a local environmental condition. A blend of several kinds of compatible grasses is safer.
If you are unsure of the type of grass you want or the best blend for your area, you can have a tour on your neighborhood for you to locate the lawns thet meet your requirements and are suited to your particular climate. Kentucky Bluegrass and Annual Ryegrass is probably the most important cool-season grass . Cool-Season grasses tend to grow best in the cooler conditions and climates. You will commonly find cool-season grasses growing in the northern areas of the U.S. and Canada, as well as moderate coastal areas, damp climates, and higher elevations. Cool-Season grasses are the hardiest of grasses and tend to do best during the spring and fall months when temperatures range from 60-75 degrees F. Conversely, Cool-Season grasses tend to do poorly during the hot and dry summer months and can even brown and go dormant during extreme conditions.
Moreover, drawbacks of cool season grasses is that they could not sustain the extreme summer conditions, specifically the heat and drought. So they needed more water and irrigation to survive. Also, these type of grasses could be use to reseed warm season grasseson winter months when lawns go brown and dormant.
