Answer: The best time of year to seed a lawn is late summer to early September. Lawn grass needs full sun all day or for at least a half a day to stay healthy, so if you have a shady area you may want to consider using a ground cover instead. Your state extension service offers detailed information on establishing lawns at their web site, such as Lawn Renovation, Establishment and Seeding:
Their web site also offers information on the soil testing you should do before you plant:
Good luck with your lawn!
Q&A Library Searching Tips