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Pruning group 1. can I prune again.

HI
i have a clematis Montana growing happily in a pot. I pruned it after flowering (  first time this year) it has grown well since but fell it needs a prune again as it’s outgrown it’s support. I need to buy a tall obelisk but they are very expensive. I would like to keep the plant, if possible, contained in the space available. Can I prune it again without disturbing the plant?  
Thanks
AmateurLiz 
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Posts

  • ObelixxObelixx Posts: 30,090
    I think this is a case of wrong plant wrong place.  Montana clematis are vigorous and can grow to 7m or more and even by keeping yours in a pot it won't want to stay in that small place.

    I would advise you to plant it out in the garden where it can spread along a fence or garage or side of the house.  A system of tensioned wires held in place with vine eyes will help guide it and be very cheap.

    Then, if you still wanta  clematis, go for one that doesn't get more than 2m or so high and wide.   This website will help you choose by size, colour, flowering period - http://clematisontheweb.org/new-clemlistsearch.cfm and then you can check suppliers such as Taylors, Thorncroft, Hawthorne, Priorswood...... 
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • punkdocpunkdoc Posts: 15,039
    Montanas are really not suitable for pots and that location is not suitable, even if it were in the ground.

    How can you lie there and think of England
    When you don't even know who's in the team

    S.Yorkshire/Derbyshire border
  • mikeymustardmikeymustard Posts: 495
    Hi @andy_liz_long, do you know what variety of Montana you have?
    Your plant is happy and healthy - for now!  However, it will have grown out of that pot, probably by the end of this year.
    But it can be done!

    If you want to grow montana in a pot, ideally you need one of the more compact varieties, like Freda or Warwickshire Rose (compact by Montana standard is still 5 metres unchecked).
    Then you'll need a massive pot - 50l minimum: think at least 60cm dia by 60cm height.
    Then you'll have to feed and water it - lots - these things are v.hungry, thirsty things!
    Finally, since they flower on last year's growth, they'll need a chance to let that growth mature; this means pruning it down to nearly nothing after flowering and then leaving it to grow for pretty much the rest of the season. You might get away with another haircut nowish, but whatever you do after spring is going to cut into next year's flowering stems. Remember it's got at least another 3 months of growing this season, and if this is its first year of flowering it hasn't even got into its stride yet.
    And for all that cossetting and fashing, you get a show in May (and probs only at the top cos you had to keep pruning it) then nothing for the rest of the year!
    So, it can be done, but should it be? It's your plant, your garden, and there's exceptions to every rule, but I'm with the other responders on this one!

  • Hi  mikeymustard punkdoc and Obelixx
    thankyou.  My clematis is a Montana grandiflora which my hubby bought from Rose Mont  in 2017.  It was a very small plant then and I had no idea how to care for it so I just put it in a pot!   Unfortunately I mixed up the 5 plants in the order so I did not even know what species of clematis it was.  It is only during lockdown that I have researched it to find the variety.  I’ve also learnt a lot about all the perennials in my garden to. 
    Ive now put up a trellis in my back garden so am going to put it in the ground today so won’t need to give it a hair cut. Thank you again. Liz
    AmateurLiz 
  • BiljeBilje Posts: 811
    Hi Liz, planting it out is by far the best solution. We had one that smothered a six foot high boundary fence. It was planted probably 25 years ago. It regularly got hacked back as it billowed over the top of the fence. Probably spread about 24 feet.

    Last winter the aged fence had to be demolished and rebuilt. The C. Montana was sawn off at ground level....guess what it's regrowing! 
  • DovefromaboveDovefromabove Posts: 88,147
    The grandiflora is a gorgeous clematis ... plant it nice and deep ... keep it well watered and stand well back  ;)

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





  • ObelixxObelixx Posts: 30,090
    Good decision.  I hope it will be happy and perform well.  It will need a thorough watering before and after planting and all thru the summer while it gets its feet down and then it should be fine tho will need good drink during any future hot, dry spells.
    Vendée - 20kms from Atlantic coast.
    "The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
    Plato
  • Well well it’s in. Looks a bit shaggy at the moment but has been well watered and attached to the trellis.  It was quite hard to get it out of the pot without damaging it.  
    Liz
    AmateurLiz 
  • mikeymustardmikeymustard Posts: 495
      ......... Ive now put up a trellis in my back garden so am going to put it in the ground today so won’t need to give it a hair cut. Thank you again. Liz
    That's a lot of leaves for a newly planted er, plant (and, by the sound of it, possibly some slight damage to the roots), you might want to just lop off a bit (anything from say, 30cm to half of it, depending on how brave you're feeling ;)) to give it a better chance of settling in - the quicker it settles, the quicker it'll start growing again!
    Also, please don't assume that just cos it's rained it doesn't need watering, because it will!
    Good luck with it :)


  • FireFire Posts: 19,096
    My montana could have covered a house. :s
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