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Planting out autumn perennials - how big do they need to be?

B3B3 Posts: 21,537
That's my question. 
Thanks chaps.
In London. Keen but lazy.
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  • LynLyn DevonPosts: 19,953
    When I grow anything from cuttings and seeds, I expect them to be as big and well rooted as a plants I  would buy in a GC or nursery. So in a 5” pot with the roots filling that.
    I have today potted on several plants into large pots, they won’t be planted out now though, I always keep them until next spring, mine will be kept sheltered in a cold GH. 

    Depends on what you have, but the bigger and stronger the plant, the more chance they will have to survive frost, slug damage, rain, wind and snow. 
    Gardening on the wild, windy west side of Dartmoor. 

  • B3B3 Posts: 21,537
    I haven't got anything yet! I was wondering what was the smallest I could get away with buying at the garden centre.
    So nothing smaller than a well-filled 5" pot.
    Thanks @Lyn
    In London. Keen but lazy.
  • FairygirlFairygirl west central ScotlandPosts: 46,463
    I often buy plants at this time of year, when they're bursting out of their pots. I divide them, and pot on, and keep them till next year as Lyn describes. 
    I think if you live in a more sheltered area, with warmer, drier soil, where you'll get good conditions for the next 6 or  7 weeks, you might get away with planting out small plants, as they could put on some decent growth.  I wouldn't , for the same reasons as Lyn. Too cold and wet, and too many hungry molluscs looking for easy pickings. 
    It's a place where beautiful isn't enough of a word....


  • B3B3 Posts: 21,537
    The clay is workable at the moment and I've got the urge.
    We cleared a largish patch up the end of the garden but were unable to do anything with it because of the weather.
    I suppose I'll just have to be patient. :( there's plenty of easy-weeder self-seeders  so it's not actually bare at the moment. 
    Thanks for advice.
    In London. Keen but lazy.
  • FairygirlFairygirl west central ScotlandPosts: 46,463
    Nothing worse than having the urge B3  ;)
    It's a place where beautiful isn't enough of a word....


  • B3B3 Posts: 21,537
    Not giving in to it is worse.
    I'm going to the gc anyway. I'm sure I'll find something to satisfy even if it's just a few violas!
    In London. Keen but lazy.
  • LynLyn DevonPosts: 19,953
    @Fairygirl are we twins😀. Although we live at opposite ends of the country we garden very much the same.

    Go for it B3 but pot them on, keep protected, think of new babies😱. if I do ever buy a plant it’s only for chopping up usually. My daughter is my plant buyer, she usually buys me a bargain from her local GC.

     Just to add,  now is the perfect time to sow some viola seeds, no special treatment, and they germinate quickly once it’s got a bit cooler.  
    I sowed mine this time last year, they’ve survived all through  the winter, all through Spring, chopped back and have bloomed constantly in my tubs and I’m just now letting them go to seed for next year. 
    When I've got enough seeds I’ll chop them back and plant them out in the garden,  
    tight moi! 😀
    Gardening on the wild, windy west side of Dartmoor. 

  • B3B3 Posts: 21,537
    I find the blue ones always do best and last through til the summer.  They don't seem to be attacked by slugs as much as the coloured ones for some reason -and I prefer them anyway.
    My only 'greenhouse' is my porch and space is very limited so I'll have to let the gc over winter the perennials for me.
    In London. Keen but lazy.
  • lovegardening77lovegardening77 Berkshire Posts: 331
    I've got the urge too!😁. I'm too impatient!
  • B3B3 Posts: 21,537
    Resistance is futile
    In London. Keen but lazy.
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