9.Pluto- 39.4 AU why do astronomers not measure the distances to stars in kilometers? distance to stars are so great that the number are too large to work with easily.
Some seeds can last for three to four years, such as: 1  asparagus. 2  beans. 3  broccoli. 4  carrots. 5  celery. 6  leeks. 7  peas. 8  spinach.
Grass seed will stay good for at least a year and a half to two years, depending on the storage conditions (cool and dry). It will probably stay viable for longer - the only issue is that the germination rate will not be as high as with fresh seed. add a comment.