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.
These seed life spans reflect no special care taken. If you keep your seeds dry and cool, you can expect many of them to last longer than the time periods indicated here, especially beans, peas and corn. Flower seed - annuals are generally good for one to three years; perennials for two to four years.