Here is a list of the number of years vegetable seeds remain viable, provided they have been stored in cool, dark and dry conditions. This is important because older seeds will have low germination rates.
|Onion, parsley, parsnip||1 year|
|Corn, leek, pepper||2 years|
|Bean, broccoli, carrot, celery, kohlrabi, pea, spinach||3 years|
|Beet, Brussels sprouts, cabbage, cauliflower, eggplant, kale, pumpkin, rutabaga, squash, Swiss chard, tomato, turnip, watermelon||4 years|
|Cantaloupe, cucumber, radish||5 years|