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my-dahlia

I have been out to inspect my dahlias today and found them flattened by the heavy rain over the weekend do I leave them or pick up and tie them together ??

 

Also do Dahlia die back in the winter ??

 

James

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  • I have dahlia that are from tubers and seed. I will be waiting to take seed from mine then lifting them all after first frost. Chopping down and storing in shredded paper upside down. Then in spring pop into compost and off you go again!! I take cuttings when they start again. I will mark my plants/tubers with a label of the colour so when I take cuttings I know what I have got. As this year I didn't label and I managed to get all my new cuttings in yellow!!! Oops!!!! 

     

    I save my seed as an insurance policy but with seed you won't get true plants you get weird and wonderful colours but that is half the fun. 

    stake and support the plant, it will help it, ball ways deadhead regularly then just easy off late summer to save a few heads for seed. I managed to propagate and prick up 357 dahlia plants this year and gave to my farther for his large borders, they look awesome! He won't lift his he lets them take their chance but I lift mine as I want to keep my original specimens (if that is the right term!)

  • Thank you Red Dahlia

    James

  • If the tuber is squashy next year then don't set it. Just keep frost free and dark. Then pray they make it through! 

  • My Dahlia is in a big pot so I think I will lift it 

    I might even take some cuttings next year (red flame) is what I've got and it's a wonderful flower everyone comments on it MY FIRST

    James

  • Often the dahlia will recover from being flattened as long as the stems have not been snapped or damaged too badly. This will depend on how new the affected growth is of course. With very large specimens it is always best to stake them or offer some kind of support to avoid rain damage.

    I was always told that dahlias should be lifted and stored over winter but my attempts were unsuccessful and all but one succumbed to mould. I think I didn't check them enough over the winter so I never tried it again.

    These days, I simply leave them in the ground as if they are planted deep enough and mulched they will survive. In the East of England we had temperatures down to -15 last winter but a higher percentage of my dahlias survived than were lost to the cold this year.

    I also take seed as a precaution but as Red Dahlia says, seed doesn't grow true to the original plant. This is part of the fun though as you never know what you are going to get. The seed grows very easily, so it is never difficult to fill any spaces if a couple haven't survived the winter.

    That said, bringing dahlias indoors in February will give you a head start if you have lifted them.

    It will depend on how much time you have as to which route you decide to take.

     

  • My Dahlia is in a pot so should I lift it or move it to the conservatory? My Conservatory is unheated with a ventilation gap all the way around the roof but I should have my greenhouse finish by December.and intend to have two tube heaters 

     

    Is February to late to be lifting a plant or moving it into a conservatory/greenhouse 

    when do you start collecting seeds ??

    James

  • how can i get rid of the red beetle that keeps eating my lillys every year, and can i take my lillys out the pot and repot?

     

  • Can anyone recommend some very low growing hardy geraniums for front of border please. I put some in and they're about 3' tall !

    Thanks 

  • I live in the Midlands and leave my Dahlias in the ground planted deep and very deep mulch on top they survive.I clear the muclh back when the last frosts have  gone.

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