Annual ryegrass (Italian ryegrass) (Lolium multiflorum)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers


Annual ryegrass (Italian ryegrass)
Lolium multiflorum

Life Cycle and Growth Habit
Cool-season annual or very weak perennial with bunch-type growth habit. 
Regional Adaptation
Cool humid
Well-drained, moist, slightly acidic to neutral (pH 6.0 to 7.0), fertile soils; full sun; avoid temperature extremes; less tolerance to excessive heat, cold, and drought than perennial ryegrass.


Light Requirements
Requires full sunlight
Best Suited for These Uses/Sites
Temporary turf until appropriate seeding time; soil stabilization; overseeding dormant warm season turfgrasses in the southern U. S.


Moderate; mow at 2 to 3 inches; supply 1 to 1 1/2 inches of water per week during the growing season to maintain green color.


Seeding (4 to 6 pounds per 1000 sq. ft.). Overseeding bermudagrass (20-40 pounds per 1000 sq. ft.). Should not be planted alone or as part of a permanent turf due to its short-lived existence and coarse texture; germinates rapidly and strongly; aggressive germination and establishment may out compete other species when planted in a mix; poor mowing quality.


No information.


Pests and Problems
Additional Notes


Related Resources
General Lawn Maintenance
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic