THE TOMATO GROWING THREAD 2018

Discussion in 'Edible Gardening' started by ARMANDII, Jan 1, 2018.

  1. jane0o0

    jane0o0 Gardener

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    Those tomatoes look lovely. Looks so cute that San Marzano. I've got one truss flowers on my Marzano but no fruit yet.
     
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    • Jimb0b

      Jimb0b Gardener

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      Hi everyone I was at the allotment early this morning before it got too hot.

      And someone said to me that I should have the tomatoes growing in pots as they poison or leech something into the soil, has anyone heard of this?

      It’s something I’ve not heard of before.

      Thanks

      James
       
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      • jane0o0

        jane0o0 Gardener

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        Temps now in greenhouse. Got door wide open and window

        [​IMG]
         
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        • CoffeeKev

          CoffeeKev Apprentice Gardener

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          I bought these through the post. They've doubled in size in a few weeks. I'm new to growing and welcome any advice. I have been told to wait for the first flowers...trusses?....then start adding tomato feed every other water 20180702_215953.jpg
           
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          • misterQ

            misterQ Super Gardener

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            Perhaps they are concerned about potato blight (which can affect members of the Solanaceae family including tomatoes) - either the site is susceptible to blight or they fear that you might introduce it.
             
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            • JWK

              JWK Gardener Staff Member

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              All I can think of is that like most crops you need to rotate otherwise bugs and diseases build up in the soil if you grow the same crop year after year in the same place. There is nothing specific that tomatoes do to soil, they certainly don't 'poison' it.
               
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              • JWK

                JWK Gardener Staff Member

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                Sounds about right - keep them somewhere in good light and ensure the compost doesn't dry out.
                 
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                • kazzawazza

                  kazzawazza Total Gardener

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                  Has anybody used watering spikes in tomatoes and veggies? And are they any good?

                  I found some in the garage and thought about putting them in my tomatoes, and cucumbers when we go away. Although neighbours water them, they are elderly and I think sometimes they forget or don’t water enough.
                   
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                  • sandymac

                    sandymac Super Gardener

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                    Hi Jane
                    Some of the tomato plants you are looking at on here are grown by very experienced growers and were started very early in the year with heat and supplementary lighting.
                    My first ones that I have been eating since May were started January, My next batch which were started in February started producing ripe fruit in June, The next batch I started in March are just colouring up now. The grafted plants I bought in at 3 for £9.99 plus £5 post and pack, I will be lucky to get any ripe fruit in August from these, Looking at your photo's my bought in plants are way behind your plants. I am assuming (never assume it makes an ass out of you and me) you did not have light and heat but bought young plants, If so and this is your first season you have done very very well. If you watched gardeners world it showed Monty tying in his tomatoes and they are way behind yours.
                    and you will be eating your own tomatoes very soon.
                    To answer your question about Wilko's and high potash feed , I looked at their web site and all they sell is chemical fertilisers which I do not use so can not recommend.
                    If you have a good seaweed based tomato fertiliser such as maxicrop organic tomato feed it will have plenty of potash (K)
                     
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                    • JWK

                      JWK Gardener Staff Member

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                      Hi @jane0o0 just to add to sandymac's good post about fertilizers...

                      These are the three main plant nutrients:
                      Nitrogen makes leafy growth
                      Phosphorus encourage root growth.
                      Potash (K) encourages flowering and fruiting

                      I have used Wilko's tomato feed in the past, there isn't a Wilkos near me and I can't tell from their website what is in it. Look at the N:P:K ratio on the label. The 'K' stands for potash and that needs to be twice as high as the other two (N & P). Right now I'm using Chempak tomato feed which is N:P:K - 15:15:30.

                      There are also many trace elements and minerals also essential to plant growth, generally all these are abundant in a good soil in most gardens. But growing in a growbag or pots with multi-purpose compost then the trace elements etc will be missing.

                      I use Comfrey Tea (a DIY home brew) to boost the trace elements that chemical feeds don't supply.
                       
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                      • JWK

                        JWK Gardener Staff Member

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                        Are these the things you put on a old plastic bottle? I should imagine they wouldn't contain enough water for a tomato plant needing up to a litre a day at the moment. Still anything is better than nothing if your neighbour forgets.
                         
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                          Last edited: Jul 3, 2018
                        • JWK

                          JWK Gardener Staff Member

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                          My outdoor Crimson Crush are not tall but very productive with tasty fruit (netted against birds):

                          IMG_20180629_154355953.jpg
                           
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                          • kazzawazza

                            kazzawazza Total Gardener

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                            Yes, but I would potentially use 2L bottles.
                             
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                            • JWK

                              JWK Gardener Staff Member

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                              How big are your plants right now? If only small then they won't need too much and depends if they are in a hot greenhouse. They might work for a long weekend but I wouldn't use them for a longer period. Also how evenly do they dispense the water I wonder, it would be worth setting them up to see how they work a week or two before your holiday.
                               
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                              • jane0o0

                                jane0o0 Gardener

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                                I thought I was doing something wrong. So they should definitely ripen before end summer. All the plants I have came from seed I started in March in a heated propagator on my windowsill so guess I've done ok up to now to keep them alive when I don't know what I'm doing. Thanking you all on this lovely site for all the help and advice you have all given me.
                                 
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