Ryegrass normally dies out in late spring, but if cool weather prevails it can become persistent. To discourage the ryegrass, stop fertilization in March. However, do not allow the permanent grass to suffer from lack of water at this time.
Italian ryegrass, Annual ryegrass
Scientific Name: Lolium perenne ssp. multiflorum (Lam.) Husnot
Synonym: Lolium multiflorum, Lolium perenne var. aristatum, Lolium italicum
Family: Poaceae ...
( Loretta Perennial Ryegrass )
Widely used clumping grass forms a medium textured, light green turf. A short-lived perennial which cannot survive high or low temperature stresses very well. Best suited for cool, moist regions with mild winters.
Ryegrass usually establishes itself quickly and with relatively little expense. Zoysia grass establishes itself slowly and is more expensive.
Perennial ryegrass, English ryegrass (Lolium perenne)
Related Topics
Green Manures
Grains and Grasses ...
A strip of ryegrass allowed to grow 4 feet high protects 24 to 32 feet behind it. Some protection extends above the height of the windbreak.
Italian ryegrass Lolium perenne ssp. multiflorum
Italian stone pine Pinus pinea
Italian woodbine Lonicera caprifolium
itchgrass Rottboellia cochinchinensis
ivy gourd, scarlet-fruited gourd Coccinia grandis
ivy-leaved morning-glory Ipomoea hederacea ...
Perennial ryegrasses germinate in 5 to 7 days. Use 4 to 6 pounds of seed per thousand square feet. Best planted in the early fall. Grows well in full sun to part shade. Does not do well in hot exposures.
Unfortunately cheap seed blends are often contaminated with weeds, or contain coarse agricultural perennial ryegrass, not turf ryegrass, meaning you'll get a lawn more suitable for grazing sheep than family barbeques.
Agricultural Use: before the arrival of monocultures of Ryegrass, both grass leys and permanent pasture always contained Yarrow (Achillea millefolium) at a rate of ca. 0.3 kg/ha.
Common winter cover crops include: rye, wheat and ryegrass. Most are sown between August and September to allow for fall growth.
Summer cover crops include oats, soybeans and buckwheat.
Augustine and zoysia grass need applications in early spring or summer. Cool season grasses which include fine fescue, Kentucky bluegrass and perennial ryegrass need fertilizer applications in early spring and late fall.
Other grain, hay, turf, and weedy grasses may be affected, including wheat, oats, wild rice, Kentucky bluegrass, perennial ryegrass, redtop, smooth brome, orchardgrass, quackgrass, reed canarygrass, etc.
 See also: Grass, May, Green, Grasses, Fescue
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