The seeds of ryegrass normally germinate within 7 to 14 days. By day 18, the grass would be a few inches above ground level. At full maturity, ryegrass can reach up to 4 feet high.
About the Author
Susan Steele has been an avid writer for more than 25 years. Steele's articles covering gardening and other topics have been published on a variety of well-known websites, such as eHow, Garden Guides and Answerbag. She graduated from Ashland Community and Technical College with a degree in data-entry operation.