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Allotment Stuff => The Basics => Topic started by: Mimi on March 15, 2004, 17:10:26

Title: Seed Shelf Life?
Post by: Mimi on March 15, 2004, 17:10:26
I have just started off some of the seeds I got from an auction site.  I have too many seeds for my  use but dont want to swap just yet (in case of failures) So I just wanted to know how long I can expect to keep the seeds before they become useless.  The seeds are for Jacaranda and Datura.  Any advice would be a help.  Thanks
Title: Re:Seed Shelf Life?
Post by: Doris_Pinks on March 15, 2004, 19:09:51
mimi, I think I read somewhere that most seeds are viable (so long as they are kept correctly) for 3-4 years, except parsnips which you have to have new every year.  If I am wrong I am sure I shall be corrected!  ;D DP
Title: Re:Seed Shelf Life?
Post by: tubs on March 15, 2004, 21:27:00
I keep excess seed in their packets in a sealed plastic container with a perforated sachet of Silica Gel to keep dry. Stick this in the freezer. Except for certain seeds parsnip/beetroot/ sweet corn for example, they stay in good condition for years. Brassica seed particularly.
Title: Re:Seed Shelf Life?
Post by: The gardener on March 16, 2004, 02:04:26
I hope you mean 'fridge' tubs not 'freezer


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Title: Re:Seed Shelf Life?
Post by: aquilegia on March 16, 2004, 09:33:44
do sweetcorn seeds not last then? I was hoping to sow the ones I had left over from last year. Don't tell me I'm going to have to buy yet more seeds (unless it's true!)
Title: Re:Seed Shelf Life?
Post by: The gardener on March 16, 2004, 12:02:23
Some seeds are more viable than others, and as has already been said it depends upon 'how they are kept'

Datura & Jacaranda;.... Datura is quite a hard seed as I recall, so I think it should be OK in second year. I don't know anything about Jacaranda.

Sweet Corn should be OK.

My method of sowing/storing.

If the packets contain more seed than I require I sow as follows;

Year 1; I sow about a third of a packet, and more often that not I get fairly good germination.

Year 2; I sow the other two thirds, and assuming I only get 50% germination this is similar to the year before.

There are some seeds that I have had for three or four years. These are generally fairly large seeds that I sow individually so don't use as many each year.

These are generally brassicas, so in succeeding years I always sow a few more than I need to allow for poorer germination results.

e.g. year 1=12 seed >>> year 2=20 seed >>>year 3=30 seed in the hope of getting 10 each year, and it works pretty well!


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Title: Re:Seed Shelf Life?
Post by: cleo on March 16, 2004, 13:01:41
Sweet corn will be fine the second year.

Stephan
Title: Re:Seed Shelf Life?
Post by: aquilegia on March 16, 2004, 13:18:26
thanks TG and Cleo.
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