Average number of years vegetable seeds will remain viable if properly stored.
STORE SEEDS PROPERLY
Keeping seeds dry during storage is most important. Moisture causes seeds to rot. See to it that moisture from the air or any other sources does not get into the seeds. A simple, inexpensive but efficient storage container can be made out of a canning glass jar with an airtight lid. Get a clean jar. Make sure it is dry. As a precaution against moisture, put a layer of powdered charcoal (dessicant) on the bottom of the jar. One-half inch thickness is sufficient. If silica gel or calcium chloride is available, these should be substituted for the charcoal. Place the seeds in an envelope so they do not get in contact with the charcoal; place in a jar and cover tightly. Low temperature prolongs the life of the seeds. With this method of storage, seeds can be kept without significant germination loss.
Asparagus – 3 years
Beans – 3 years
Beets – 4 years
Broccoli – 3 years
Brussels Sprouts – 4 years
Cabbage – 4 years
Carrots – 3 years
Cauliflower – 4 years
Celeriac – 3 years
Celery – 3 years
Chard,Swiss chard – 4 years
Chicory – 4 years
Chinese Cabbage – 3 years
Collards – 5 years
Corn – 2 years
Corn Salad-(mache) – 5 years
Cress – 5 years
Cucumbers – 5 years
Eggplant – 4 years
Endive – 5 years
Kale – 4 years
Kohlrabi – 3 years
Leeks – 2 years
Lettuce – 6 years
Muskmelon – 5 years
Okra – 2 years
Onions – 1 year
Parsnips – 1 year
Peas – 3 years
Peppers – 2 years
Radishes – 5 years
Rutabagas – 4 years
Salsify – 1 year
Scorzonera – 2 years
Sorrel – 4 years
Southern Peas – 3 years
Spinach – 3 years
Squash & Pumpkins – 4 years
Tomatoes – 4 years
Turnips – 4 years
Watermelon – 4 years
Source:
http://www.angelfire.com/pe/kennys/p11b.html
