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Chelsea Chop

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  • LatimerLatimer Posts: 1,068
    Alchemist said:
    Gardening newbie here..... What is the Chelsea Chop?
    You cut back some plants by a third to a half, depending on growth to make them bushier/not top heavy. You do this around Chelsey show. Cheers. 
    Thanks! 
    I’ve no idea what I’m doing. 
  • AnniDAnniD Posts: 12,585
    Personally l would leave them be and let them establish @Matt_
  • ObelixxObelixx Posts: 30,090
    Have a read of this - https://www.rhs.org.uk/advice/profile?pid=594 - which explains the Chelsea Chop and lists plants it's good for.

    The idea is that cutting back some of the flowering stems in late May delays flowering and extends the flowering season and also makes the plants produce shorter, sturdier stems.   Plants like sedum spectabile are notorious for going floppy and sprawling if left unchopped.
    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
  • PosyPosy Posts: 3,601
    Thanks, Obelixx.
  • FireFire Posts: 19,096
    I think it's important for woody salvias, else they just get too leggy over the years. The plants in the vid look much more dense than mine. I was going for an actual Bumble hedge, but think I would rather go for about three ft of dense growth.
  • edhelkaedhelka Posts: 2,351
    I don't get why I should do something designed to delay flowering. I can understand other reasons but I am not willing to pay for them with the delay in flowers. Maybe I could try the half-chop with my phlox - chopping only half of the stems, chosen randomly - to prolong flowering without delaying it. Anyone successful with that?
  • B3B3 Posts: 27,505
    The idea,I think is to get a more compact plant that isn't flopping all over the place. The trade off is that your flowers are a bit later.
    With the large sedum plants,I leave a few stems in the middle and prune the rest. If I didn't most of the blooms would end up touching the ground in a flat fan shape with nothing much in the middle.
    In London. Keen but lazy.
  • ObelixxObelixx Posts: 30,090
    If your garden is full of plants that flower in July and you can extend that display into August, for free, the Chelsea chop lets you do that.  You don't ct all the stems or all the plants so they start to flower at the usual time but then flower over a longer period and a more compact, less floppy plant.
    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
  • MarlorenaMarlorena Posts: 8,705
    I don't Chelsea Chop anything... never have... never going to I'm afraid... and that includes Sedums... the young foliage right now is much too nice to cut back..
    East Anglia, England
  • ObelixxObelixx Posts: 30,090
    It's way too soon.  Chelsea chop is for late May - around the time of the Chelsea flower show by which time plants will be more advanced.
    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
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