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Worried about my Iceberg climber

PianoplayerPianoplayer Posts: 624
in Plants
@Marlorena @edhelka @Nollie Sorry to pester you, but I didn't want to hijack the positive Rose Season thread.

I have had both edge-munching and lacey-leaf creating sawfly, but this yellowing pattern seems different. Can't find anything on-line. Can you give me any advice or reassurance?

Thanks!


Posts

  • MarlorenaMarlorena Posts: 8,705
    ..just a touch of chlorosis @Pianoplayer
    ..really nothing at all to worry about there, I get this a lot... have you watered the rose at all, including when you planted it? is your tap water very hard?   some chelated iron can rectify that, but I really wouldn't bother at this stage.. your rose looks quite young, it will right itself in time..
    East Anglia, England
  • PianoplayerPianoplayer Posts: 624
    Thanks very much @Marlorena. Yes, it's been watered generously at least twice a week since going in as a bare root end of March BUT my water is very hard and I don't have room for a rainwater butt. I'll keep an eye on it.
  • MarlorenaMarlorena Posts: 8,705
    ...there you have your answer @Pianoplayer
    ...my tap water is also very hard, one of the worst in the country, and if I water a rose with the hose, within just 2 or 3 days I will see foliage like that..  you could probably leave off the watering for a bit especially as I expect you had some decent rain recently?..   it will right itself in time..
    East Anglia, England
  • NollieNollie Posts: 7,529
    edited June 2020
    The start of Chlorosis, PP, when the leaf tissue between the veins starts to pale and go yellow, usually indicating a shortage of iron in the soil and/or a high PH (alkaline) soil that locks out the plant’s access to it. I get it too, plus it looks very peculiar when the foliage is red (had to check with M that that’s what it was!). A dose of chelated/sequestered iron will sort it out. I use the powdered form and chuck a teaspoon into a watering can and drench the roots. You will start seeing a difference in days.
    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
  • PianoplayerPianoplayer Posts: 624
    Thank you, both. Good to know both the cause and the solution(s).
  • NollieNollie Posts: 7,529
    @Marlorena sorry crossing posts! Yes my soil is alkaline and well water very hard. Here is a before and after of the 3-yr old Gertrude Jekyll you advised me on:

    6 days ago, lots of new growth leaves like this, plus damned sawfly damage on the older leaves:


    Today, after the iron dose, all those leaves colouring up nicely:

    Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
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