Barefoot Lawn | DuPont and Olympia Lawn Care Blog Blog What kind of grass is in my lawn?

What kind of grass is in my lawn?

What kind of grass is in my lawn? | Olympia & DuPont Lawn Care Company

Most of the lawns in our area start out as a 3-way blend of Perennial ryegrass (Lolium perenne L.) (PRG).  Perennial ryegrass is a cool season grass that thrives in our moist and cool climate.  PRG has a rapid germination rate and vigorous seedling growth.  It prefers full sun but will tolerate some shade.  It grows best in non-compacted, well drained soil.  The fine leaf texture, dark green color and excellent wear tolerance makes for a beautiful lawn.

Over time Annual bluegrass (Poa annua L.) (Poa) starts to establish.  Poa is a cool season grass that is adaptable to moist, cool and shaded areas.  It can grow in all soil textures including compacted soil.  Poa has a fine leaf texture, lighter green color with shallow root depth resulting in poor wear tolerance.  Poa withstands close and frequent mowing and is able to produce seed heads even at 1/8” mowing heights.  Individual plants can produce between 1,000 and 2,500 seeds in a season.

Here are some things you can do to encourage Perennial ryegrass and discourage Poa annua encroachment:

-Aerate, De-thatch, Lime and Over-seed with 3-way Perennial ryegrass in the Spring or Fall to relieve compaction and increase turf density.

-Irrigate deep and infrequent to encourage root development in PRG.  Overwatering in shady areas encourages Poa.

-Avoid mowing too low or scalping the lawn.  Poa can tolerate low mowing heights.

-Remove clippings when Poa is producing seed heads.


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