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Cobaea scandens, what am I doing wrong?

Discussion in 'Gardening Discussions' started by Loki, Apr 7, 2018.

  1. Loki

    Loki Total Gardener

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    This is the second year I've tried this plant with no success :sad:
    Fresh seed and compost, in a heated prop and some on a sunny window. Compost just damp, I know they tend to rot, but however I try these seeds they just won't grow :scratch:
    Has anyone had success with these seeds? Please tell me how you did it :help:
     
  2. kazzawazza

    kazzawazza Total Gardener

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    I have never grown them personally, but i understand you cover pots with plastic or cling film and water them from the base of the pot. The plastic/cling film helps retain moisture.
     
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    • Loki

      Loki Total Gardener

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      Thanks, did all that :blue thumb: it just seems one of those plants I'm not destined to grow:sad: I love the look of them though :spinning:
       
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      • HarryS

        HarryS Eternally Optimistic Gardener

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        I grew Cobea , cup and saucer vine in 2014 . I soaked the seed before sowing. Planted them in seed compost. The seeds need to be planted on their edge and just barely covered . Place on a heated prop. Seeds germinated in 2 to 3 weeks , only got 2 out of 15 seeds.
         
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        • Loki

          Loki Total Gardener

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          Thanks @HarryS , I did that too:scratch: maybe they are just awkward :rolleyespink: I hate being defeated though :wallbanging:
          I don't think I'm a competitive person but when it comes to seeds........:gaah: I will find a way....ok, maybe I won't :noidea:
          But it becomes a challenge :paladin:
           
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          • shiney

            shiney President, Grumpy Old Men's Club Staff Member

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            I use a very technical process. I just stick them in some compost, water and watch them grow :noidea:

            They're about 3" above the top of the pot.

            One of my favourites :blue thumb:

            P1250867.JPG

            P1250915.JPG
             
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            • Loki

              Loki Total Gardener

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              Why should this surprise me? :thud: :heehee:
               
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              • Loki

                Loki Total Gardener

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                • shiney

                  shiney President, Grumpy Old Men's Club Staff Member

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                  @Loki I knew you wouldn't be :heehee: :grphg:
                   
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                  • silu

                    silu gardening easy...hmmm

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                    Is yours growing as a perennial @shiney? If it is the South of England has got a lot warmer than when I lived in that neck of the woods. I've grown it but only as an annual and yup had trouble with germination. Looks like our shiney is able to take a bow, yet again:snorky:
                     
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                    • shiney

                      shiney President, Grumpy Old Men's Club Staff Member

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                      No, it's just an annual. :blue thumb: :)

                      Just kept on the kitchen worktop at the moment

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                      • longk

                        longk Total Gardener

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                        How I do it is to soak the seed for 24/48 hours and sow in bags in slightly damp vermiculite placed on a warm windowsill. Germination usually starts in three or four days up to a maximum of about 50% success.
                        Cobaea seeds, like Tropaeolum peregrinum seeds, are fussy so what works for me may not work for you! Once you find the method that works in your house stick with it and you'll wonder why it was ever difficult!
                        Fresh seed is essential!
                         
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                        • pete

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

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                          I tend to think they need high temps. @shiney might prove me wrong but they do rot if they hang around, ie cool and wet.
                          I tend to use a 25C up to 30C for many seeds.
                           
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                          • Riverman

                            Riverman Gardener

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                            I sowed 10 seeds about 6 weeks ago in seed compost in an unheated propagator on a south facing windowsill and all but one came up. I think it may have to do with how fresh the seed is, I purchased mine from Chiltern Seeds. I have given away all but three , the ones I have kept are now 18 inches high and I think may need to be potted on (currently in 3 inch pots).

                            I managed to keep the last one I had grown for two years but this winter was its undoing. It was doing fine until the beast from the east finished it off.

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                            • shiney

                              shiney President, Grumpy Old Men's Club Staff Member

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                              Our method works well for almost any type of plant. Mrs Shiney tells them that they like it and will grow. Works for us! :thumbsup:
                               
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