Tall Fescue
Festuca arundinacea (syn. Schedonorus arundinaceus) · Cool-season, Perennial, C3 grass
Grass Family
Poaceae, subfamily Pooideae, tribe Poeae
Grass Category
Lawn/Turf Grass, Sports Turf, Erosion Control
Variety / Cultivar
Turf-Type Tall Fescue (TTTF), likely a modern dwarf cultivar which is darker and denser than old-growth varieties like Kentucky 31.
Hardiness Zones
USDA Zones 4-7; highly suited for the Transition Zone where it tolerates heat better than Bluegrass and cold better than Bermuda.
About This Grass
A robust, deep-rooted grass with a rich dark green color. It maintains a dense, uniform appearance when mowed properly. Mature unmowed plants can reach 3-4 feet with open panicle seed heads, but in turf form, it is kept at 2-4 inches. It remains green into late fall and is one of the first to green up in spring.
Blade Characteristics
Blade width is medium-coarse (3-5mm). Typical characteristics include prominent parallel veins on the upper surface, a dull underside, and a keeled (V-shaped) cross-section. Tips are pointed (not boat-shaped). Vernation is rolled in the bud. Ligules are short and membranous; auricles are typically absent or very short/blunt. The leaf margins are often slightly rough to the touch.
Root System
Notably deep fibrous root system (often reaching 2-3 feet deep), giving it superior drought tolerance compared to other cool-season grasses. It has a low thatch-forming tendency and moderate establishment speed from seed. It does not form a true sod as effectively as rhizomatous grasses.
Growing Information
Origin Region
Native to Europe and North Africa; widely adapted throughout the Transition Zone and temperate regions of North America.
Growth Habit
Bunch-type (clump-forming). It lacks significant rhizomes or stolons, spreading primarily via tillering to form a dense canopy.
Sunlight & Water Needs
Adapts to Full Sun to Partial Shade (requires at least 4-6 hours of sun). High drought tolerance for a cool-season grass, but requires weekly deep watering during summer heat to prevent dormancy. Prefers well-drained soil with pH 5.5 to 7.5.
Mowing & Maintenance
Ideal height is 2.5 to 4.0 inches; mowing too short can stress the bunch-type growth. Requires 2-4 lbs of Nitrogen per 1000 sq ft annually. Does not require frequent dethatching but needs annual core aeration and overseeding to maintain density since it doesn't spread laterally.
Special Characteristics
Excellent wear tolerance and traffic durability. High resistance to many common turf diseases, though susceptible to Brown Patch (Rhizoctonia) in hot, humid nights. Very good shade tolerance for a cool-season lawn grass.
Ecological Information
Introduced species in North America. Provides soil stabilization on slopes due to deep roots. While useful for erosion control, it can be invasive in native prairie restoration areas. Often blended with 5-10% Kentucky Bluegrass to help fill in bare spots.