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Dahlia help

Hello there👋

Wondering if someone can help 🙈 I am very new into gardening only starting in autumn last year and went a little nuts with dahlias, have 32 varieties now in the garden 🙈

1 of my plants has yellow spots all over it - it's about the size of my other dahlias and has put up little buds but I'm wondering whether it will be ok or if it's something that should be taken out of the ground and disposed of? 

There's 13 dahlias in that bed and none of the others have the same spotting issues. 



Also have just been out checking them and I've noticed that on most plants the bottom leaves are turning yellow/brown - does this typically happen to the bottom leaves or could it just be a weather factor as we've had lots of rain the past few weeks? 



Thanks a mill 😊

Posts

  • SalixGoldSalixGold Posts: 450
    edited July 2023
    Welcome.  Are you watering and feeding? Are they planted in full sun? (Over six hours a day). Sometimes feeding with diluted sequestered iron can help even out nutrient problems. With the hot weather, then plants regular deep soaking with several buckets of water. They don't like to dry out.
  • Hi SalixGold

    When I prepped the flowerbed I used blood fish and bone - flowers went into the bed in May. During the hot spell I was watering regularly however we have had a lot of rain here the last few weeks - my soil has good drainage. The plants get 6 hour plus in the sun a day. 

    Will take the sequestered iron on board and see how it goes, thank you 😊
  • Nanny BeachNanny Beach Posts: 8,719
    A little mad, haha,that's an understatement!! Well, I want to see these 32 dahlias. Did you go from not having a garden to buying a field! Mine are late flowering this year,I'm in the mildest se corner of the UK 10 minutes from the sea. The ones in our front garden,south facing stay in, the rest have to be lifted in autumn.
  • FairygirlFairygirl Posts: 55,117
    The membrane and bark isn't ideal around them. Slugs love them [dahlias] and bark is a great place for those to hide-  during the day especially. 
    It might simply be a sap sucker of some kind - aphids etc, but sometimes - a single plant just doesn't thrive as well as others. Not just dahlias - anything. The ground could be less ideal where that one is too. That's just how it is. 
    There also seems to be a lot of weeds around - remove those too. They're just competition for any nutrients. The plants nearest that one could simply be getting most of the available nutrition   :)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
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