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Help with Rudbeckia Goldsturm

The_Lazy_GardenerThe_Lazy_Gardener Posts: 163
in Problem solving
Hi, I planted a Rudbeckia Goldstrum in the boarder about three years ago and less of it comes up every year.  Its in the sun most of the day, and the soil is not too heavy. 

Thank you 

Fred 

Posts

  • ObelixxObelixx Posts: 29,653
    Is there any sign of mildew or aphids or leaf spot?  All or any of these would weaken the plants.  
    Vendée - 20kms from Atlantic coast.
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • Blue OnionBlue Onion Posts: 2,968
    How do you treat it over winter?  Do you leave the leaves/stems on until spring or cut it back hard?  I leave mine on to protect the crown.. and leaves from the tree get trapped in there to make a nice cozy nest for winter.  I only cut back all the dead flower stems and leaves once spring is here.. but mine is in sandy soil.  Maybe yours is getting too soggy over winter, and it is rotting off?  
    Utah, USA.
  • Singing GardenerSinging Gardener Posts: 1,229
    Mine also seems to struggle but it does better in wet summers or when I have time to water it frequently so maybe it's not getting enough water in the summer?
  • Busy-LizzieBusy-Lizzie Posts: 22,662
    Mine is in clay, but I mixed in some compost. I don't cut it down until spring. I have found that it needs watering in summer, when I didn't water it when it was dry it didn't thrive.
    Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
  • The_Lazy_GardenerThe_Lazy_Gardener Posts: 163
    Hi, I cut it back in the spring, there's nothing attacking it. Maybe ad some grit, water more in the summer? Love this plant, don't want to loose it.  

    Thanks all for your time. 

    Fred  
  • LynLyn Posts: 22,887
    I think maybe the watering has something to do with it,  when I first started to plant up  this garden in 2012 I bought six  Goldstrum plugs from J. Parker’s,  I now have patches of it that are about 3’ diameter where I’ve transplanted bits around the garden,  it seems always raining here so perhaps that’s the answer, or maybe my very acid soil. 


    Gardening on the wild, windy west side of Dartmoor. 

  • plant pauperplant pauper Posts: 6,904
    edited March 2018
    I bought one just last week for my very boggy garden but it will be up out of trouble in a slightly raised bed (disused pond????) They do seem to like constant moisture ie don't let it dry out, but don't like to be in a puddle either according to what I've read.
    I want your 3' wide boyos @Lyn. My soil is almost pure peat so hopefully the acidity will suit them.
    ps Lyn you just cost me a fortune on JP's!!! Did you know they have 51 pages of plug plants!!!!!  >:)  :s
  • The_Lazy_GardenerThe_Lazy_Gardener Posts: 163
    Going to dig mine up and put it back in its bucket which it loved. 😆
  • LynLyn Posts: 22,887
    I don’t mind posting some to anyone that wants a few. 
    Gardening on the wild, windy west side of Dartmoor. 

  • StevedaylillyStevedaylilly Posts: 1,087
    Rudbeckia Goldsrum  is one plant that tells you when it's dry as it shrivels up and acts dead when not sufficiently watered. But a great stalwart in the boarder. In the height of summer I particular water them deep and that keeps them happy 
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