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.
Advice also given is that seeds generally remain viable for two years from packing, apart from parsnips which should be used within one year. However, it is possible your seeds will last longer (and from my own experience I know most do). The following is a list that was published in Amateur Gardening that offered for popular vegetable and flower seeds: