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Longevity of seeds in ideal storage
(Information contained in the below list, while presumed reasonably accurate, is a compilation of my own experience and published industry-wide "guestimates", and is offered here in the public interest at no charge and with no warranty stated or implied.)

Note: Time in terms of years can vary widely depending on individual storage conditions. Virtually everyone will have a different experience. Some seeds can last for decades...perhaps even centuries...IF storage conditions are absolutely perfect. Few gardeners have the ability—or the desire—to sustain those perfect conditions for long. Please read the article: Giving Seeds What They Need In Storage 

 

VEGETABLES
Seed Type Years Seed Type Years
Asparagus 3-4 Mustard 5-8
Beans 3-6 New Zealand Spinach 4-5
Beets 3-4 Okra 1-2
Broccoli 4-5 Onions 2-4
Brussels Sprouts 4-5 Parsley 3-5
Cabbage 4-5 Parsnips 1-3
Cantaloupe 6-10                Peas 4-6
Carrots 3-5 Peppers (all) 3-5
Cauliflower 4-5 Potatoes (real seed) 5-7
Celeriac 4-5 Pumpkins 3-5
Celery 3-5 Radish 3-5
Chicory 4-5 Rutabaga 3-5
Collards 4-5 Salsify 3-4
Corn 4-6 Scorzonera 3-4
Cucumbers 5-7 Spinach 3-4
Eggplants 3-5 Squash (all) 3-5
Escarole/Endive 3-4 Strawberry 3-6
Kale 4-5 Sunflower 4-6
Kohlrabi 4-5 Swiss Chard 3-4
Leeks 2-4 Tomato 4-7
Lettuce 3-4 Turnip 5-8
Watermelon 4-6
         
FLOWERS
Seed Type Years Seed Type Years
Achillea 4 Hollyhock 2-3
Acroclinium 3 Humulus 1-2
Ageratum 4 Hunnemannia 1-2
Agrostemma 4 Impatiens 2
Alyssum 4 Ipomea 2-3
Amaranthus 4-5 Kochia 1
Ammobium 1-2 Larkspur 1-2
Anagallis 4-5 Lathyrus 3-4
Anemone 2 Lavatera 4-5
Anthemis 2 Lilium (true lilies) 1 (Note)
Anthirrhium 3-4 Linaria 2-3
Aquilegia 2 Linum 1-2
Arabis 2-3 Lobelia 3-4
Arnerua 3 Lunaria 1-2
Aster 1-2 Lupine 1-2
Aubrietia 2 Lychnis 2-3
Balloon Vine 3-4 Marigold 2-3
Balsam Flower 5-6 Marvel of Peru 2-3
Bartonia 1-2 Matricaria 2-3
Bellis 2-3 Mesembryanthemum 3-4
Bidens 2 Mignonette 2-4
Boltonia 5 Myosotis 1-2
Brachicome 3-4 Nasturtium 5-7
Browallia (Bush Violet) 2-3 Nemesia 2-3
Cacalia 1-2 Nemophila 2
Calendula 5-6 Nepeta 2-3
Calliopsis 3-4 Nicotiana 3-4
Campanula 3 Nigella 1-2
Candytuft 2-3 Oenothera 2
Canna 3 Pansy 1-2
Carnation 4-5 Passiflora 1
Celosia 4 Penstemon 2
Centaurea 1-3 Petunia 2-3
Chelone 1-3 Phacelia 2
Chrysanthemum 4-5 Phlox 1-2
Cineraria 3-4 Physalis 1-2
Clarkia 2-3 Physostegia 2-3
Clianthus 1 Platycodon 2-3
Cober 2 Polemonium 1-2
Coix 2-3 Poppy (all) 4-5
Coleus 2 Portulaca 2-3
Collinsia 1-2 Pueraria (kudzu) 3-4
Convolvulus 4-5 Pyrethrum 1-2
Coreopsis 2 Ranunculus 5-6
Cosmos 3-4 Rhodanthe 2-3
Cyclamen 4-5 Salpiglossis 5-7
Cynoglossum 2-3 Salvia 1
Dalhia 2-3 Sanvitalia 4-5
Datura 3-4 Saponaria 1-2
Delphinium 1 Scabiosa 2-3
Dianthus 4-5 Schizanthus 4-5
Dicentra 1-2 Shasta Daisy 1-2
Didiscus 2-3 Smilax 1
Digitalis 2 Statice (annual) 2-3
Dimorphotheca 1 Stocks 5-6
Dolichos 2 Stokesia 1-2
Erigeron 2 Sweet Peas 2-3
Eschscholzia 3 Sweet William 1-2
Euphorbia 2-3 Thalictrum 1
Gaillardia 2-3 Thunbergia 1-2
Gamolepis 2 Tithonia 2
Geranium 1-2 Torenia 1-2
Gerbera 1 Tritoma 2
Geum 2 Venidium 1-2
Gilia 4-5 Verbena 1
Godetia 3 Vinca 1-2
Gomphrena 2-3 Viola 1
Gourds 3-4 Virginia Stock 1-2
Gypsophila 2-3 Wallflower 4-5
Helianthus 2-3 Wild Cucumber 1-2
Helichrysum 1-2 Wisteria 2
Heliotrope 1-2 Xeranthemum 2
Hesperis 3-4 Zinnia 5-6
Hibiscus 3-4

Most of the popular Herbs...Don't expect much better than one year of storage longevity. Even then, the most you can hope for would be something less than 50% germination...at best.

Giving Seeds What They Really Need In Storage

 
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