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Why are my tomato plants pale?

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  • Nanny BeachNanny Beach Posts: 8,719
     Did you grow them from seed,if so when,what varieties are they? You shouldn't be feeding them till they bear fruit
    I would move at least some outside straight away
  •  Did you grow them from seed,if so when,what varieties are they? You shouldn't be feeding them till they bear fruit
    I would move at least some outside straight away
    All grown from seed - Marmande, Black Russian, Apero and Red Cherry. I've still got a few small plants - I might try them outside...
    I could agree with you, but then we'd both be wrong...
  • Pete.8Pete.8 Posts: 11,340
    Your plants are very thin and leggy which indicates a lack of good light and if they are planted in decent compost (which by the sound of it they are) then the pale leaves points to a lack of decent light rather than a lack of nitrogen.
    If the polytunnel is warm and there's not enough light that would also contribute to the problem.
    So my thoughts are the plants need some sun, and looking at the forecast there's going to be plenty of that in the next few days.
    They've been sheltered in the polytunnel, so putting them out in the direct sun now would likely give them sunburn, they need to get used to full sun over the course of about week.

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • SlumSlum Posts: 385
    What, and how much have you been feeding them? It could be a nutrient deficiency caused by over feeding. 
  • DovefromaboveDovefromabove Posts: 88,147
    I'm concerned about the colouration of the plants in the bottom left of the picture ... if those plants have been in a polytunnel and not exposed to excessively cool temperatures that looks to me like a nutrient problem.

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • DovefromaboveDovefromabove Posts: 88,147
    edited July 2021
    These are in Norfolk and were planted out right at the start of June and have had no protection  so it shouldn’t be a temperature problem with yours. 


    Some of the large fruited types are more rangy and have less foliage than others varieties, but when I grew them they weren’t paler than other varieties. 
    How are yours supported?  I can’t see canes or strings? 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • bcpathomebcpathome Posts: 1,313
    Not that I’m any tomato expert but I would get them out of that tunnel pdq and into an hour or two of sun building up daily to them being outside all the time .With luck and prayers they’ll be ok.
  • Thank you all for your help and advice.It looks as if i've put my polytunnel in the wrong place, and it's a lack of sunlight causing the issues.

    I'll move things outside into the sunshine and cross my fingers....
    I could agree with you, but then we'd both be wrong...
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