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Giant 6 foot tall weed - please can you help identify

Big Blue SkyBig Blue Sky Posts: 716
in Plants
This giant weed grows in my south facing front garden. I didn’t remove it because I was curious what it will become but now it’s about to start flowering so I would like to make sure it is nothing invasive as otherwise I will take it out before it produces seeds. 
Please let me know what it could be. The flowers looks like dill. 








Surrey
«13

Posts

  • Butterfly66Butterfly66 Posts: 970
    Could be an Angelica - maybe wild celery?
     If you have a garden and a library, you have everything you need.”—Marcus Tullius Cicero
    East facing, top of a hill clay-loam, cultivated for centuries (7 years by me). Birmingham
  • fidgetbonesfidgetbones Posts: 17,618
    Common hogweed or cow parsnip
    Heracleum sphondylium, commonly known as hogweed, common hogweed or cow parsnip, is a herbaceous perennial or biennial plant.

  • WilderbeastWilderbeast Posts: 1,415
    Looks just like my Angelica though not as big a spread. 
  • AsarumAsarum Posts: 661
    How about parsnip? Pastinaca sativa.
    East Anglia
  • raisingirlraisingirl Posts: 7,093
    It's not lovage. That has a softer leaf and slight purple tinge. It could be hogweed although the leaves don't look quite right and the flower looks like it's too domed - but I imagine there are lots of slight variations around the country so it could be your local variant. I'd say it's more likely a form of angelica although probably not the wild one which is pinker and likes damp - could be the garden one.

    Do the plants that used to be known as umbellifers cross readily? 
    Gardening on the edge of Exmoor, in Devon

    “It's still magic even if you know how it's done.” 
  • LiriodendronLiriodendron Posts: 8,328
    What colour are the flowers?
    Since 2019 I've lived in east Clare, in the west of Ireland.
  • strelitzia32strelitzia32 Posts: 758
    Haha! @Big Blue Sky , you and me both!

    Have a read of this thread:

    https://forum.gardenersworld.com/discussion/1038878/weed-or-wildflower

  • Big Blue SkyBig Blue Sky Posts: 716
    Thank you everyone for your responses so far. 

    @SlipperyElm I have just crushed one of the leaves - it smells quite nice but not like spice, just green and a little bit fruity maybe. 

    @Liriodendron

    I think most of the tiny flowers are only just about opening but this a picture of the most open one, they seem yellow 


    Surrey
  • PalustrisPalustris Posts: 4,307
    Can cross out Hogweed too, the flowers on that are either white or pink.
  • BobTheGardenerBobTheGardener Posts: 11,385
    edited July 2020
    I agree with Asarum and think it's wild parsnip, Pastinanca sativa.

    A trowel in the hand is worth a thousand lost under a bush.
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