Azaleas - curling leaves - problem?

Discussion in 'General Gardening Discussion' started by bluepeter, Mar 31, 2021.

  1. bluepeter

    bluepeter Apprentice Gardener

    Joined:
    Jul 15, 2020
    Messages:
    27
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Salisbury
    Ratings:
    +11
    I've planted a few azaleas in recent months. Some of the leaves on one are curling up - please see photo. Is this a problem? If so, any advice on resolving it would be appreciated.

    Unfortunately, I'm not sure exactly what variety it is. I think that it's Big Point, but it might be Arabesk. I bought both together (3 litre pots from Millais Nurseries in September of last year), and now I can't remember which way round I planted them. Yes, I know that's pretty stupid of me.

    In case it's relevant, I first noticed this happening about a month ago. I gave the plants a healthy dose of Vitax Azalea, Rhododendron & Shrub Fertiliser about a week ago. I also hoed in some sulphur chips.

    I've not noticed any problems with any of the other azaleas in this bed, or with the rhododendrons in front of the house.

    PICT0044.JPG
     
  2. Spruce

    Spruce Glad to be back .....

    Joined:
    Apr 10, 2009
    Messages:
    8,348
    Gender:
    Male
    Ratings:
    +11,749
    I think you have had a frost and it causes stress on the plant and with all this rain we have had over the winter ... they should be fine as the leaves look healthy and dont look like they have a fungus etc ,,, see what others say but thats what I tink

    Spruce
     
    • Informative Informative x 1
    • bluepeter

      bluepeter Apprentice Gardener

      Joined:
      Jul 15, 2020
      Messages:
      27
      Gender:
      Male
      Occupation:
      Retired
      Location:
      Salisbury
      Ratings:
      +11
      Yes, we did have a few sub-zero nights during the winter. If that's all it is, I guess that I can stop worrying.

      Thank you.
       
    • Spruce

      Spruce Glad to be back .....

      Joined:
      Apr 10, 2009
      Messages:
      8,348
      Gender:
      Male
      Ratings:
      +11,749
      do you have different varieties ? some are more tough than others
       
      • Like Like x 1
      • bluepeter

        bluepeter Apprentice Gardener

        Joined:
        Jul 15, 2020
        Messages:
        27
        Gender:
        Male
        Occupation:
        Retired
        Location:
        Salisbury
        Ratings:
        +11
        Yes, four varieties of each of the azaleas at the back and the rhododendrons at the front. This is the only one of its kind that I have.
         
        • Like Like x 1
        • pete

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

          Joined:
          Jan 9, 2005
          Messages:
          32,991
          Gender:
          Male
          Occupation:
          Retired
          Location:
          Mid Kent
          Ratings:
          +42,734
          I'm wondering if they are dry at the root.
          Passed some potted rhododendron earlier to day and they were doing the same thing.
           
          • Like Like x 1
          • bluepeter

            bluepeter Apprentice Gardener

            Joined:
            Jul 15, 2020
            Messages:
            27
            Gender:
            Male
            Occupation:
            Retired
            Location:
            Salisbury
            Ratings:
            +11
            No, definitely not. I've kept the soil moist since I planted it out last September. But thanks for the thought.

            The only time it'll have been drenched is when we had a lot of heavy rain. And that won't have lasted long - it's fairly well drained. So I don't think that the opposite is the problem, either.
             
            • Like Like x 1
            • luis_pr

              luis_pr Gardener

              Joined:
              Jun 3, 2019
              Messages:
              79
              Gender:
              Male
              Location:
              Dallas/Fort Worth, Texas, USA; USDA Zone 7b/8a
              Ratings:
              +91
              I concur with the possibility of cold weather since you got to freezing on the night of March 29. Not much. Some rhodies do the same type of curling although by late May to June, there are some leaf roller pests here sometimes. Watering deeply may help sometimes or covering them with blankets if temps go down much further. I usually keep 5-10 cms of organic mulch underneath so the soil moisture does not easily evaporate.
               
            • bluepeter

              bluepeter Apprentice Gardener

              Joined:
              Jul 15, 2020
              Messages:
              27
              Gender:
              Male
              Occupation:
              Retired
              Location:
              Salisbury
              Ratings:
              +11
              Thank you.

              I don't think that the temperature two nights ago is terribly relevant: as I said above, I noticed the rolled leaves a month ago. Nonetheless, I'm very glad to hear that you agree that frost is the likely cause.
               
            • luis_pr

              luis_pr Gardener

              Joined:
              Jun 3, 2019
              Messages:
              79
              Gender:
              Male
              Location:
              Dallas/Fort Worth, Texas, USA; USDA Zone 7b/8a
              Ratings:
              +91
              Yes, rhododendrons like azaleas tend to roll/curl the leaves and might resemble like a cigarette. The leaves either roll/curl up (like in your picture) or can roll/curl downwards too. On March 5th through 8th and on March 24th, you had overnight temperatures below freezing. Make sure it has organic mulch to protect the tiny, shallow roots (they are usually found in the top 10-20 cms) in their new home from these temperature fluctuations.
               
              Last edited: Apr 1, 2021
            Loading...

            Share This Page

            1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
              By continuing to use this site, you are consenting to our use of cookies.
              Dismiss Notice