Daliah leaves been eaten

Discussion in 'Other Plants' started by Gman1978, Jun 13, 2025.

  1. Gman1978

    Gman1978 Apprentice Gardener

    Joined:
    Apr 29, 2025
    Messages:
    4
    Ratings:
    +0
    My daliah plant leaves have been eaten all leaves have been eaten

    The plant was close to blooming

    Dont know what has happened

    I have shown a picture of the plant when leaves were not eaten
     

    Attached Files:

  2. Pete8

    Pete8 Total Gardener

    Joined:
    Aug 29, 2017
    Messages:
    1,046
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Billericay, Essex
    Ratings:
    +2,640
    Probably slugs and/or snails.
    The plant will probably recover and bloom again in a few weeks if you can stop the culprits.

    Slug pellets available today are much kinder to nature than the old metaldehyde pellets that were very toxic - so up to you.
    Or you could go out at night and deal with them as you see fit.....
     
    • Agree Agree x 2
    • Like Like x 1
    • CarolineL

      CarolineL Total Gardener

      Joined:
      Jun 12, 2016
      Messages:
      2,884
      Gender:
      Female
      Occupation:
      Retired Software engineer
      Location:
      Rural Carmarthenshire
      Ratings:
      +7,287
      I'm afraid probably slugs or snails. If you move the leaves around in the light you might see the shiny trails. Put a good layer of grit around the base of the plant, water well (the soil looks dry) and they should grow new leaves. If you invert the leaf ribs and see grubs or caterpillars, that's another possibility. Squish them.
       
    • CarolineL

      CarolineL Total Gardener

      Joined:
      Jun 12, 2016
      Messages:
      2,884
      Gender:
      Female
      Occupation:
      Retired Software engineer
      Location:
      Rural Carmarthenshire
      Ratings:
      +7,287
      Snap!
       
      • Like Like x 2
      • Escarpment

        Escarpment Total Gardener

        Joined:
        Mar 14, 2024
        Messages:
        2,224
        Gender:
        Female
        Location:
        Somerset
        Ratings:
        +8,214
        I planted out some dahlias last week at the same time as coreopsis and verbenas, all yellow-stickered bedding from the supermarket. The dahlias and verbenas are still looking fine but the coreopsis have been eaten to the ground. So maybe you need to grow coreopsis to distract the culprits from your dahlias!
        Mind you they'll probably be on to my dahlias next.
         
        • Funny Funny x 2
        • Garrett

          Garrett Super Gardener

          Joined:
          Aug 19, 2021
          Messages:
          194
          Gender:
          Male
          Location:
          England
          Ratings:
          +979
          After having my favourite pompom dahlias munched to oblivion years ago, I switched over to only growing purple/bronze leaf dahlias and the slugs do tend to ignore them.

          Doesn't help with the ones you have, but I would choose dark leaf dahlias next time and see how they get on.
           
          • Agree Agree x 1
          • NigelJ

            NigelJ Total Gardener

            Joined:
            Jan 31, 2012
            Messages:
            9,067
            Gender:
            Male
            Occupation:
            Mad Scientist
            Location:
            Paignton Devon
            Ratings:
            +29,002
            I find that the bronze leaved ones get munched with me. I prefer the dark foliaged ones myself, the majority of my dahlias are grown in pots thanks to the slugs and snails.
             
            • Agree Agree x 1
            • fairygirl

              fairygirl Total Gardener

              Joined:
              Oct 3, 2020
              Messages:
              4,027
              Occupation:
              retired
              Location:
              west central Scotland
              Ratings:
              +9,202
              Same situation here - every year. I only started growing them again a few years ago, and within a few weeks, I remembered why I'd stopped growing them. :biggrin:
              I've resorted to using a 'moat' for dahlias. I have a couple of large-ish metal trays which work quite well, but slugs can get across a surprisingly decent amount of water, which people often don't realise. Fortunately, I also have quite a good shallow part in my pond, and a pot put up on bricks in there, was very effective. I had one which was being totally trashed, and it was astounding how well it came back.
              Keeping them viable over winter is another problem though. The seed sown ones can be better, but you don't get the variety of flower.
              If that one was mine, I'd lift it and pot it up, making sure there are no slugs/snails in the soil around it. If you don't, it's a captive audience...

              Like @NigelJ - mine are all grown in pots. Absolutely no use in the ground.
               
            • Escarpment

              Escarpment Total Gardener

              Joined:
              Mar 14, 2024
              Messages:
              2,224
              Gender:
              Female
              Location:
              Somerset
              Ratings:
              +8,214
              Nope I was wrong, went out this morning to put in some more plants and realised that it was the dahlias that were leafless. Oh well. I've left my nice dark leafed one in a pot and it's looking good so far.
               
              • Like Like x 1
                Last edited: Jun 14, 2025
              • NigelJ

                NigelJ Total Gardener

                Joined:
                Jan 31, 2012
                Messages:
                9,067
                Gender:
                Male
                Occupation:
                Mad Scientist
                Location:
                Paignton Devon
                Ratings:
                +29,002
                I do have Dahlia imperialis in the ground, the first shoots get munched, but it grows faster than the slugs can eat it, they finally catch up at the end of the growing season.
                 
              • Plantminded

                Plantminded Total Gardener

                Joined:
                Mar 13, 2024
                Messages:
                2,562
                Gender:
                Male
                Occupation:
                Retired
                Location:
                Wirral
                Ratings:
                +8,659
                I avoid growing known slug favourites here apart from Hostas which are in pots and on a bench. The only two Dahlias I have are in the ground and so far untouched. Since removing two large beds of Bergenias which were here when I moved in, the slug population has diminished and I hardly see any, although I don't go out at night looking for them :biggrin:. I also have an active blackbird patrol on my lawn and in borders which also helps.
                 
                • Like Like x 1
                • Pete8

                  Pete8 Total Gardener

                  Joined:
                  Aug 29, 2017
                  Messages:
                  1,046
                  Gender:
                  Male
                  Occupation:
                  Retired
                  Location:
                  Billericay, Essex
                  Ratings:
                  +2,640
                  I find the same.
                  All my dahlias are Bishops Children grown from seed - dark leaves and hot tropical colours..
                  Some plants are 6-7yrs old now. I never lift them.
                  Early growth is munched by slugs, but the plants persist and usually they overcome the damage - but sometimes not, so I sow a few seeds each Spring to replace any casualties.
                   
                • Thevictorian

                  Thevictorian Super Gardener

                  Joined:
                  Mar 14, 2024
                  Messages:
                  978
                  Ratings:
                  +1,825
                  I used to leave them in the ground and some years they would be ok after a slight munching but other years they are continuously eaten to the point that they are months behind. The dry spring this year would have been good for them, we had very little signs of slugs/snails, but they have well and truely caught up now and are grazing most things.
                  I gave up on dahlias because I didn't think it was worth the effort and wanted the space for new things but growing them in pots to a large size before planting out worked well. I am talking about several feet high before planting as I grew the taller varieties and not the little dwarf ones.
                   
                  • Like Like x 1
                  • BB3

                    BB3 Total Gardener

                    Joined:
                    Mar 13, 2024
                    Messages:
                    1,324
                    Gender:
                    Female
                    Occupation:
                    A bit of gardening
                    Location:
                    London
                    Ratings:
                    +2,355
                    I had one in a container last year. It was a disaster. I didn't get around to dumping it and couldn't get it out of the container this year. I must've scared the pants off it. It's looking really healthy and coming into bud. I think you're right about the dry spring (and winter).It didn't rot and no slugs @Thevictorian
                     
                    • Like Like x 1
                    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