Forum home Plants

Dahlias- snap frost

I've been away for the weekend and it appears there was a bit of an unexpected frost as a few (though not all) of my Dahlias have been blackened slightly since last Friday.

I've attached a photo of 2 of the more badly affected ones. Should I still keep feeding them right up until a proper frost blackens them?


«1

Posts

  • FairygirlFairygirl west central ScotlandPosts: 39,497
    I'd say no - don't feed, but I no longer grow them.  :)
    It's a place where beautiful isn't enough of a word....


  • punkdocpunkdoc Sheffield, Derbyshire border.Posts: 9,738
    I stop feeding mine at the end of September, regardless of frost. They will still flower through October.
    Southern trees bear a strange fruit
    Blood on the leaves and blood at the root
  • punkdoc said:
    I stop feeding mine at the end of September, regardless of frost. They will still flower through October.
    Do you base that on anything in particular or is it just something you've always done?
  • punkdocpunkdoc Sheffield, Derbyshire border.Posts: 9,738
    Mine usually get dug up at the end of October, usually have had frosts by then, so not much point feeding after the end of September.
    Southern trees bear a strange fruit
    Blood on the leaves and blood at the root
  • tui34tui34 Béziers, Herault, FrancePosts: 1,291
    Looks like my Basil - it's history now.
    A good hoeing is worth two waterings.

  • FairygirlFairygirl west central ScotlandPosts: 39,497
    That was my thinking @punkdoc - there wouldn't be much benefit to the plant by that point, and it's a waste of food.
    I don't feed anything - annuals or later flowering plants,  beyond early September, or even earlier. 
    It's a place where beautiful isn't enough of a word....


  • Ok thanks for the input.

    I'll probably give the others one final weekly feed tomorrow then.

    Curious to see how big the tubers will be come digging them out the pots. It's amazing the jump in size they make in the first year when bought as pathetic little things from the garden centre so wonder just how big the ones in their second year might be.
  • @Dirty Harry - there is a school of thought that too much feed late in the dahlia growing season has a negative impact on the tuber keeping qualities whilst stored overwinter.  This appears to be particularly applicable to too much nitrogen.  You may want to check your bottle of feed tomorrow.
  • FireFire LondonPosts: 10,906
    oooo, I'm hoping to have another month of dahlias left, here in the south.
  • punkdocpunkdoc Sheffield, Derbyshire border.Posts: 9,738
    You will get that without feeding them anymore @Fire
    Southern trees bear a strange fruit
    Blood on the leaves and blood at the root
Sign In or Register to comment.