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Dahlias not flowering

nemracnemrac Posts: 70
in Problem solving
I lift my dahlia tubers and over winter them every year.The tubers planted in this pot have plenty of foliage but so far have not flowered. The ones planted in my borders have been ok. Any ideas? Thanks.
Thanks.
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Posts

  • Nanny BeachNanny Beach Posts: 8,719
    Can't see the tops of yours,but a lot of mine have had the buds scoffed by slugs,we resorted to putting the pots on a horrible wooden bench in the end. One massive stone pot we couldn't move so no flowers. They do like really hot dry conditions,my front garden south facing they have been ok
  • HilltoppersHilltoppers Posts: 20
    We are also south facing and it's just a shame as they give such long lasting colour at this time of the year. They joys of gardening I guess!? 
  • DovefromaboveDovefromabove Posts: 88,147
    Have you tried giving them a bit of tomato fertiliser?

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • FairygirlFairygirl Posts: 55,117
    How many are in that pot?
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • HilltoppersHilltoppers Posts: 20
    I've given them the odd seaweed feed, and I think it's just one bunch of tubers if memory serves me right. We gardeners have to take the rough with the smooth and I wouldn't be so bothered if the pot wasn't so prominent by the french doors off of the kitchen !  :)
  • FairygirlFairygirl Posts: 55,117
    Seaweed promotes foliage at the expense of flowers, so the tomato food @Dovefromabove mentions would have been more beneficial. It promotes flowering  :)

    Never mind - the tubers will be growing and perhaps next year will be better.   :)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • punkdocpunkdoc Posts: 15,039
    Dahlias need a lot of food to flower well. If in pots, I give them tomato feed every week.
    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • HilltoppersHilltoppers Posts: 20
    That's interesting to know about the tomato feed so I'll stick to that next time round. Thanks for all your advice.
  • FireFire Posts: 19,096
    Fairygirl said:
    Seaweed promotes foliage at the expense of flowers.
    I know people on the forum who favour seaweed feed for promoting flower growth. Could you say more about why it's no good for flowering? @Fairygirl
  • LynLyn Posts: 23,190
    Too much nitrogen in sea weed alone,  flowering plants need more potash or at least a mixture, not just seaweed. 
    Gardening on the wild, windy west side of Dartmoor. 

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