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Advice Please

Morning all, 
Looks like these are doing brilliantly in their first year, but what to do with them? They’ve grown so much.
I don’t want them taking over the sink they’re planted in.
Do I prune, separate? If so, how and where please? Apologies, I can’t rotate the pics!

Posts

  • GardenerSuzeGardenerSuze Posts: 5,692
    @HareBrainedIdeas They are House Leeks or Sempervivians. Easy to care for and slow growing. They can deal with very cold temperatures but will rot over winter if wet.
    You do have other plants in your trough possibly Pulsatilla and Phlox .
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
  • Amazing thank you. Any advice on how to cut them back please?
  • DovefromaboveDovefromabove Posts: 88,147
    Which do you want to cut back? The tall ones are the sempervivums’ flowering spikes. When they’ve flowered the larger central rosette will die off to be replaced by the little ‘pups’ surrounding it. 

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





  • LynLyn Posts: 23,190
    The plant in the top corner looks like a primula,  you can cut that right back as far as you can.
    Gardening on the wild, windy west side of Dartmoor. 

  • GardenerSuzeGardenerSuze Posts: 5,692
    @HareBrainedIdeas The central area of the House Leek where the flowers are will die off and as @Dovefromabove mentions the small plants that grow around it will be your new plants.
    For now I would enjoy these curious flowers.
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
  • For clarity, is these 2 plants! They were dainty mounds when I first planted them! I’d like to know how to reduce the sizes. Is it removing rosettes or cutting off the longer stems once they have flowered?
    Thank you for your help!
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