Mouldy seeds in the greenhouse

Discussion in 'Greenhouse Growing' started by JimmyB, Nov 16, 2021.

  1. JimmyB

    JimmyB Gardener

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    Sadly, many of the seeds I've been collecting and storing in paper bags in my new greenhouse have gone mouldy - which is tragic. I thought that in paper bags was the way to stop them going mouldy but it turns out I was wrong. I'll be rebuying sweet peas and lupins for next year now... anyone store seeds in a green house without this happening? Any tips? Thanks
     
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    • JWK

      JWK Gardener Staff Member

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      It's best to store seed in an air tight container somewhere dark and cool. Trouble with a greenhouse is the humidity will be high which will have caused your seeds to go mouldy.
       
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      • JimmyB

        JimmyB Gardener

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        Yes - you're absolutely right. What I need to do is find a way to dry them to a reasonable point and then store in airtight containers. The missus already keeps trying to put clean towels and bed clothes in my nice warm sourdough raising cupboard (that one with the hot water tank in it), so introducing seeds to that equation would be quite an uphill task. Just need somewhere dry and dark as you say.
         
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        • JWK

          JWK Gardener Staff Member

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          Best avoid an airing cupboard as it will be too hot for successful seed storage. Have you got a garage, that would be ok.
           
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          • JWK

            JWK Gardener Staff Member

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            I have some of my saved seeds in envelopes in a spare room. I have the envelopes open to help get them dry. I will be sowing some soon, things like hellebore seed need a few weeks at very low temperatures to trigger germination. My saved veggie seed I dry out indoors in flat open containers, once dry after a week or two they go into polythene zip bags in a tin in our larder.
             
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            • JimmyB

              JimmyB Gardener

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              I'm a bit nervous of my garage for the drying part because the mice are wild in there. But once dry and in sealed pots - yes - that would work.
               
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              • pete

                pete Growing a bit of this and a bit of that....

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                Seeds should dry ok in the house at just normal room temperatures.
                I'd even store them in a cool room ion the house or in a sealed container in the fridge once dried out, a small sachet of silica gel is useful if you have any.
                I always save them if I come across them, silica gel that is.
                 
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                • JimmyB

                  JimmyB Gardener

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                  I was getting to be a bit unpopular with the seeds drying all over the place - hence the attempt to carry on in the green house. But I can't see much option other than to go again. and maybe try to be tidier. I did get my Delphimium seeds into a pot having drived them in the summer - and have now brought back to get them in the freezer for a few weeks before planting. I don't have huge germination rates but I plant enough that it doesn't matter. Am going to need to get the ones in the ground covered now to protect against snails in the spring: I saw the episode of GW where a specialist Delphimium grower said he used coarse sand for the job - so I tried it last year with good effect.
                   
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                  • JimmyB

                    JimmyB Gardener

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                    Silica gel sounds like a great plan. Storing seeds in the fridge sounds like I'd be single quickly. :)
                     
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                    • pete

                      pete Growing a bit of this and a bit of that....

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                      Get your own fridge in the garage, it good for keeping the beer as well.;)
                       
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                      • JWK

                        JWK Gardener Staff Member

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                        I lost all my runner bean seed one year, leaving them in my garage over winter in a tray. Pesky mice.
                         
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                        • JWK

                          JWK Gardener Staff Member

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                          ... another good reason for a separate fridge is health and safety, Ricinus seeds look a bit like beans but are deadly poisonous ...
                           
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                          • JimmyB

                            JimmyB Gardener

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                            Funny you should say that: I googled how to collect and store Morning Glory seeds the other day - I've had some great success with them this year, having never tried before and have a great mass of seeds which I am collecting as the seed pods turn brown.

                            I had quite a surprise on Google. However, any inquisitiveness on my part is more than countered by the fact that they contain cyanide so those indulging have to take an anti-emetic at the same time...
                             
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