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Tall Fescue

Festuca arundinacea

Landscaping Networx

Tall fescue is a cool-season, bunch-type grass that grows with course to medium textured leaves. Adapted to a wide range of soil conditions but performs best in moist, well drained soils. Good heat and drought tolerance (for a cool-season grass) and poor cold tolerance makes this species a good choice for transition zone lawns. It will stay green year-round in the transition zone if watered.

It will winter kill when planted in the northern states with temperatures averaging below 10 degrees. A better choice for colder climates is Kentucky bluegrass

Kentucky 31 is the old, most common cultivar (cultivated variety). Because of its course texture, this species does not mix well with finer textured lawns and is considered a weed. There are several new and improved "turf-type" tall fescue cultivars that have a finer leaf blade, darker green color and make a nicer lawn.

Characteristics

  • Cool-Season perennial
  • Bunch-Type growth habit - spreads by tillering
  • Established by seeding
  • Dark green leaves
  • Course textured
  • Low to moderate maintenance
  • Deep rooted
  • Medium to low water and fertilizer requirements
  • Prefers full sunny to light shade
Tall Fescue Lawn
Where to grow a tall fescue lawn.

Identification

  • Vernation - leaves are rolled in sheath
  • Ligule is Absent
  • Auricles are Small
  • Leaf blade tips are pointed
  • Midrib is present
  • Very broad collar

New Lawns

Early fall is the best time to seed or sod cool-season lawns. Spring seeding should be avoided if possible because it does not give the plants time to form a deep root system that they will need to survive the summer. Weed invasion is also a big problem when seeding in the spring. It is better to plant sod if you need to start a new lawn in the spring.

Seed at a rate of 6 to 8 lbs. seed per 1,000 sq. ft.

After planting, keep the seed moist with light and frequent watering the first 14 to 21 days. Gradually reduce watering frequency as the grass plants develop. Start mowing when the new grass reaches 2 inches.

Fescue Lawn Maintenance

Mowing

Mowing height is 2 1/2 to 3 1/2 inches. This species does not tolerate close mowing so cutting higher is best. The turf-type tall fescues can be cut a little lower, they do fine in the 2 to 3 inch range.

Raise the mowing height - 3 to 3 1/2 inches - during the hot summer months.

It is not necessary to remove grass clippings if mowed at the proper height and frequency.

Watering

This grass-type has good drought tolerance but needs to be watered in the summer to keep it green.

It requires 1 inch of water every 7 to 10 days.

Proper watering is very important to maintaining a quality lawn. Spring irrigation will decrease the drought tolerance of tall fescue...let mother nature do her job. Wait until your lawn shows signs of needing water (wilting, footpring or rolling leaves). Then apply enough water to wet the soil to a depth of 4 to 8 inches. This should be enough to last 7 to 10 days.

Mowing tall fescue
watering tall fescue

Fertilizing 

2 to 3 pounds of nitrogen per 1000 square feet per year is adequate.

The most important time to fertilize is in the fall. Apply 1 to 1 1/2 lbs nitrogen in September and again in October/November. A light application of 1/2 pound nitrogen can be applied in early spring, however excess nitrogen fertilizer should be avoided late spring through August.

Pests, Diseases and Problems

A dense, healthy turf is always the best defense against weed invasion and other pest problems.

Diseases

Brown Patch is the most common disease problem and is related to excessive nitrogen fertilizer and too much water. Avoiding late spring and summer nitrogen fertilization will help prevent brown patch.

Insects

White grubs have been the major insect pest and can be very damaging to tall fescue lawns. Cutworm and sod webworms can also be damaging but are not as common as grubs.

Weeds

It is very difficult to maintain a nice tall fescue lawn without using a herbicide to control crabgrass. Spring applications of a preemergent herbicide is recommended to keep grassy and broadleaf weeds from invading.

Thinning

Tall fescue has a tendency to thin and become clumpy after a hot and dry summer. It is recommended that you core aerate and overseed every fall to maintain a thick, healthy lawn.


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