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.)
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 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
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