Grass Identification Guide For Illinois (2024)

Grass Identification Guide For Illinois

Quick Guide

  • Kentucky Bluegrass
  • Perennial Ryegrass
  • Tall Fescue
  • Fine Fescue
  • Colonial Bentgrass

Grass Identification Guide For Illinois (1)

Kentucky Bluegrass

Info About Kentucky Bluegrass

Without question, Kentucky bluegrass is the most popular turf choice in Illinois and the majority of the United States. The name of this grass comes from its dark green leaves that are often described as having a bluish hue in certain lighting. Kentucky bluegrass is beloved for its quick recovery time and soft texture, but this grass type will require a good deal of maintenance to keep it so soft and lush. As Kentucky bluegrass does not respond well to either shade or drought conditions, it is often blended with other cool-season grasses.

Attributes

  • Thrives in sunlight
  • High water use
  • High nitrogen use
  • Moderate drought tolerance
  • Folded leaf shape
  • Optimal height between 2.5-3 inches
  • High cold tolerance
  • Aggressively fast growth rate
  • Moderate-to-high thatch buildup
  • Boat-shaped tips

Grass Identification Guide For Illinois (2)

Perennial Ryegrass

Info About Perennial Ryegrass

Perennial ryegrass is another common grass type found in lawns across northern Illinois. It is a bunch-type grass, meaning it only grows upward in clumps instead of outward via underground rhizomes like Kentucky bluegrass. This makes perennial ryegrass a popular option for overseeding, especially when combined with bluegrass seed in order to optimize growth and coverage. Ryegrass is most commonly identified by its shiny, darker green leaves that can be fine-to-medium in texture.

Attributes

  • Thrives in sunlight
  • Moderate-to-high water use
  • Moderate-to-high nitrogen use
  • High drought tolerance
  • Folded leaf shape
  • Optimal height between 1.5-2.5 inches
  • Medium cold tolerance
  • Extremely fast establishment rate
  • Resistant to thatch buildup
  • Pointed tips

Grass Identification Guide For Illinois (3)

Tall Fescue

Info About Tall Fescue Grass

This is perhaps the most versatile and adaptable grass you will find in Illinois, so much so that it can be found in the colder northern parts of the state and the warmer southern parts of Illinois. Traditional tall fescue has a coarse texture and light green color, but it is often mixed with other fescues to give it a more deep emerald color and a softer texture. Tall fescue has medium-sized blades that grow in a very dense, bunch-type manner. Though tall fescue will require more frequent mowings and maintenance, it is the most resilient and long-lasting cool-season grass.

Attributes

  • Excellent shade tolerance
  • Low water use
  • Moderate-to-high nitrogen use
  • Excellent drought tolerance
  • Rolled leaf shape
  • Optimal height between 3-4 inches
  • Medium cold tolerance
  • Excellent wear and traffic tolerance
  • Resistant to thatch buildup
  • Pointed tips

Grass Identification Guide For Illinois (4)

Fine Fescue

Info About Fine Fescue Grass

Made up of several fescue types, fine fescue is softer and requires much less maintenance than tall fescue, with leaves that are narrower and darker than tall fescue. Though it is typically a bunch-type turf, certain fescue types that may be present in fine fescue do spread via rhizomes, meaning that some fine fescues can spread in a variety of ways. Fine fescue is a great choice for properties that are heavily shaded from sunlight, as this is the most shade-tolerant cool-season grass. Though it is not the best at recovering and repairing itself, fine fescue is quite adaptable to a variety of climates and temperatures, and homeowners appreciate its attractive and even growth.

Attributes

  • Excellent shade tolerance
  • Moderate water use
  • Low-to-moderate nitrogen use
  • High drought tolerance
  • Folded leaf shape
  • Optimal height between 1-3 inches
  • Moderate-to-high cold tolerance
  • Poor wear and traffic tolerance
  • Somewhat resistant to thatch buildup
  • Pointed tips

Grass Identification Guide For Illinois (5)

Colonial Bentgrass

Info About Colonial Bentgrass

The closely related creeping bentgrass is often viewed as a harmful weed, but there are practical uses for bentgrass. Most famously, colonial bentgrass is used on golf greens because of its very fine grass blades and tolerance to low mowing. This grass spreads outward via rhizomes in the soil, and the leaf blades are light green, soft, and grow densely. Colonial bentgrass may not be the most common grass type among residential properties, but it can be a good option for lawns that experience frequently moist, cool conditions.

Attributes

  • Moderate shade tolerance
  • Moderate-to-high water use
  • Low nitrogen use
  • Poor drought tolerance
  • Rolled leaf shape
  • Optimal height is around 1 inch or less
  • Low cold tolerance
  • Fast establishment rate
  • Very prone to thatch buildup
  • Pointed tips

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Grass Identification Guide For Illinois (2024)

FAQs

Grass Identification Guide For Illinois? ›

Grasses used in Illinois are typically cool season grasses. Kentucky bluegrass, fine fescue, and perennial ryegrass are the most common with turf type fescue being used at the more southern portion of Illinois. Some people are using warm season grasses such as zoysia grass in Southern Illinois as well.

What kind of grass do I have in Illinois? ›

Grasses used in Illinois are typically cool season grasses. Kentucky bluegrass, fine fescue, and perennial ryegrass are the most common with turf type fescue being used at the more southern portion of Illinois. Some people are using warm season grasses such as zoysia grass in Southern Illinois as well.

How do you identify a sedge vs grass? ›

The following rhyme can help identify in which category a grass-like species belongs: 'Sedges have edges, rushes are round, grasses have knees that bend to the ground. ' The 'knees' of grasses are joint-like nodes found along round, hollow stems.

What is the most common grass in the Midwest? ›

As a result, the most common grasses in the midwest are Kentucky Bluegrass, Fine Fescue, and Perennial Ryegrass. It's also common to find blends of these three varieties, as each have their own advantages and disadvantages when it comes to weathering different climates, soil composition, and sun exposure.

What is Illinois prairie grass? ›

Big bluestem is our state prairie grass. It may grow to a height of 12 feet!

Is there an app to identify grass types? ›

Pl@ntNet allows you to identify and better understand all kinds of plants living in nature: flowering plants, trees, grasses, conifers, ferns, vines, wild salads, cacti (and many more).

What does fescue grass look like? ›

It grows between 2-5 feet tall if unmowed. Its leaves are stiff and sharply angled at the collar region to be held close to 90 degrees away from the stem. You can find a short membranous ligule and blunt auricles (shorter and rounder than other grasses), which are arm-like extensions of the leaf sheath.

What does zoysia grass look like? ›

During its active growing season, Zoysia typically stays light to medium green. It turns brown when winter dormancy sets in, but it stays green much longer than Bermudagrass and other warm-season grasses. Plus, Pennington Zenith Zoysia keeps its green color longer than ordinary Zoysia grasses do.

What is the name of the Illinois state grass? ›

Big bluestem (Andropogon gerardii) ​was named the Official State Prairie Grass in 1989. This native plant grows statewide in moist soils and lowlands. It was the most abundant grass in the prairies that once covered most of Illinois. Today, big bluestem is sometimes grown in pastures as food for livestock.

What are the 4 prairie grasses? ›

The plant community is dominated by the “four horsem*n of the prairie”: big bluestem (Andropogon gerardii), switchgrass (Panicum virgatum), indiangrass (Sorghastrum nutans), and little bluestem (Shizachyrium scoparium).

Is creeping thistle native to Illinois? ›

Canada Thistle is a common plant that occurs primarily in central and northern Illinois (see Distribution Map). It is apparently less common or absent from many areas of southern Illinois, although it could be spreading southward. Contrary to the common name, this plant is originally from Eurasia.

How do you know what type of grass? ›

Grass types vary in the width of their blades and whether blade tips are sharp-pointed, rounded or boat-shaped. The arrangement of grass leaves in new shoots, called vernation, may be V-shaped and folded or circular and rolled. Your grass's growth habit also provides grass I.D. clues.

What does sedge look like? ›

Sedges are mostly grown for their bladelike foliage, which ranges from thin strands to thick straps in shades of green, bluish green, yellow, and copper. Their height ranges from several inches to 3 feet. Some gardeners consider the flowers nondescript, but I find many of them intriguing.

How to identify Carex? ›

Carex plants must have mature seeds for accurate identification. You also need to examine the basal portions of the stems and the underground organs. The basal portion of the plant is important for observing the leaf sheath color, presence/absence of blades, and the form of the sheath as it disintegrates.

What zone is Illinois grass in? ›

The Illinois plant hardiness zone covers zones 5a, 5b, 6a, 6b, and 7a, which have a temperature range of -20 to 5 degrees Fahrenheit. That's why the best type of grass seeds for Illinois are cool season grasses.

What grass seed should I use in Illinois? ›

The most commonly recommended type of grass seed in Illinois is for cool-season grasses, including Kentucky Bluegrass, Perennial Ryegrass, Fine Fescue, and Tall Fescue.

What is the most common lawn grass species? ›

Kentucky bluegrass is one of the most popular types in the North. It has a deep, green color and excellent texture. It grows well from seed, and is a popular choice for sod farms in the North. It grows from a very extensive system of rhizomes, underground stems that produce new plants.

What grass is native to Chicago? ›

Big bluestem and little bluestem (Andropogon gerardii and Schizachyrium scoparium) The bluestems are true native prairie grasses suitable for naturalistic areas, prairie gardens, or erosion control.

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