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.
As Iâve been looking through my on-hand supply of leftover vegetable seeds, in particular, I kept saying to myself, âNow does lettuce last two years or five?â and knew it was time once and for all to make a handy reference chart comparing how long different seeds last, according to whom. Most seed will last a couple to several yearsâbut there are disclaimers to even that general a statement. As living things, seeds are perishable, particularly if not kept cool and dry (such as in a tightly sealed jar in the refrigerator or freezer). Humidity, in particular, is death to seeds.