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Cerinthe Major

historymanhistoryman Posts: 141
in Problem solving
I have grown Cerinthe Major from seed - lovely plants now 10 inches high but in the last few days they have developed hard white spot on leaves.  I read "online" that "this is normal" would be pleased to hear from anyone on this
Thanks 
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Posts

  • philippasmith2philippasmith2 Posts: 3,742
    I've grown Cerinthe for years.  Whilst you may find the odd pale mark on the leaves, I've never seen anything which could be described as a "hard white spot".  Not much help I'm afraid  :)
  • Pete.8Pete.8 Posts: 11,340
    edited June 2023
    I'd guess it's some sort of oedema (water retention).
    If the plant has too much water at its roots, the excess can build-up in the leaves and causes 'blisters'.
    I don't know that's the cause, but it may be.
    It's unlikely to affect the plant in any serious way and it should perform normally.

    A photo of your plant may help us be more accurate

    Billericay - Essex

    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • fidgetbonesfidgetbones Posts: 17,618
    The leaves can be spotted, its not a problem.  A photo would be helpful.
  • historymanhistoryman Posts: 141
    Thank you all I will get photo and post
  • historymanhistoryman Posts: 141
    Herewith photos of leaves of Cerinthe





  • JennyJJennyJ Posts: 10,576
    Mine are like that, and have been when I've grown them before. I think it's normal.
    Doncaster, South Yorkshire. Soil type: sandy, well-drained
  • fidgetbonesfidgetbones Posts: 17,618
    That looks  normal to me.
  • LynLyn Posts: 23,190
    That’s what they do,  they’re fine.
    Gardening on the wild, windy west side of Dartmoor. 

  • historymanhistoryman Posts: 141
    Thank you all.  I was afraid that I was going to have to destroy them.  Bit weird though!
    We have just had a very cold spell - does the weather affect them and cause this spotting?
  • LynLyn Posts: 23,190
    No, not weather related,  it’s what they do. 
    Gardening on the wild, windy west side of Dartmoor. 

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