Posted: 23/04/2012 at 11:30
It really depends on what plant the seed is from (and how they have been stored of course). For instance, tomato, beans, peas & lots of others will keep for sevreral years, on the other hand if you tried to grow parsnip from just last year's seed you would get jolly poor germination.
I did compile a comprehensive list of seed & how long it remains viable for....alas, it's filed in a word document, so in view of the fact I can't cut 'n paste here, I'll not be able to post it.
