Fescue grows well in meadows and pastures throughout North America, Europe and North Africa. Although the grass turns brown as part of its natural life cycle, some of the color change can be prevented.
Considered a “cool season” grass, fescue thrives in cooler conditions and may turn brown during warmer months from excessive heat and limited water. When temperatures reach 90 degrees, the grass frequently goes into normal dormancy.
Rhizoctonia brown patch attacks fescue lawns, particularly during warm weather with high moisture levels. Brown patch tends to attack tall fescue more quickly and may damage the grass in as little as 24 to 48 hours. Circular patches normally start out looking purple and then quickly change to brown.
Since fescue goes dormant in warmer months, landscapers frequently overseed with another grass adapted to warm-season growth. This blends the grass varieties and limits the appearance of brown turf. Although the fescue still goes dormant, the other grass keeps the lawn green.