Kentucky Blue Grass
A mixture of bluegrass & creeping fescue.
This depends on which type of grass you're planting and where in the world you happen to be planting it.
Grass seed usually loses about 5%-7% of its germination capability every year past its "sell by date". There is usually a sticker on the grass seed packages that will tell you what the sell by date is.
It is a monocot.
Kentucky Blue Grass
A mixture of bluegrass & creeping fescue.
If your planting grass seed its best to plant it in the fall in September. that way the grass seed doesn't ocmpete with any weeds. If your planting sod do it early spring or in fall.
That will vary tremendously depending upon what kind of grass it is. Your best bet is to follow the directions on the package.
Rye grass.
what is the best grass seed to use on your lawn to regrow grass after a cold freeze killed 45% of the lawn. Depending on what part of the country you live in, this may be the time to go with xeroscape, that does not need watering.
bluegrass...everyone knows that
Arizona was the 5th seed in the west.
Bermuda or Kentucky blue
it is a grain or cereal crop obtained from a grass seed head.
It is best to plant grass seed in the Detroit area in the fall, in September and October, when the soil is warm and you have the fall rains.
Yes, grass comes from seed.