What Is This Plant?

[Questman]

I was in my daughter's garden the other day when I spotted an amazing tall plant in the border. It was about seven feet tall, thin stalk and with what looked like an onion on the top. She said that it just popped up on its own.
Does any member recognise it from my description?
I took a photo but don't know how to show it on The AnswerBank.

[Buenchico]

To show us a photo, upload it to here:
https://imgbb.com/

Copy the link offered to you and paste it into a post on this thread (prefereably giving it a line to itself).

Could it be a sunflower though?
https://thumbs.dreamstime.com/z/blooming-sunflower-bud-to-beautiful-flower-19387986.jpg

[Toorak]

I thought it might be an allium (although I’m not sure if any grow to that height)

[Questman]

I've tried to follow your instructions and the image has uploaded, but I don't know where it has finished up.
https://ibb.co/X5qsQXv . Is this it?

[Questman]

Great, it is the image. anyone recognise it?
https://ibb.co/X5qsQXv

[Gromit]

Triffid.

[emeritus]

I’m pretty sure it’s an alium

[Buenchico]

Possibly a particular Allium Giganteum:
https://www.jparkers.co.uk/3-allium-giganteum-1000610c

[Questman]

Buenchico, was my link to the image helpful?

[Mamyalynne]

Some almost identical discussed here.

https://forum.gardenersworld.com/discussion/1029081/giant-allium

[shoota]

(Nice Acer!)

[Mamyalynne]

https://www.vanengelen.com/allium-summer-drummer.html

[Buenchico]

An excellent link, Mamya!

>>> Buenchico, was my link to the image helpful?

Eventually, although all I thought of initially was the Berliner Fernsehturm ;-)
https://img.theculturetrip.com/768x432/wp-content/uploads/2016/03/tvtower.jpg

[Questman]

Thanks everyone for your suggestions. I must assume that it is Allium Giganteum from the other images you've sent.
Just hope it will flower.

[DTCwordfan]

It's an embryonic CN Tower Torontus, and highly invasive, Canadian visitors knowingly or unknowingly depositing them as they travel....It was 'created' by the Dutch who started infilling Lake Ontario when there was all that land in Canuckshire behind them.....
https://shawglobalnews.files.wordpress.com/2020/02/cpt70147421-1.jpg?quality=70&strip=all

[Questman]

I've just noticed Mamyalynne - your suggestion seems to be spot on. Thanks.

[Mamyalynne]

You're welcome, it was a team effort really.

[DTCwordfan]

I've just drawn the copper plant beneath, it fronts on a country estate manor house that I have been tackling! No idea what it is....but hey, ho....

[Tilly2]

Do you mean the Japanese Acer, DTC?

[retrocop]

//
//It's an embryonic CN Tower Torontus, and highly invasive,//

It certainly is invasive. Blue Jays do not like it as it overlooks and intrudes on their territory. :-)

[retrocop]

//It was 'created' by the Dutch who started infilling Lake Ontario when there was all that land in Canuckshire behind them..... //

Ah that must of been Holland Landing. Ontario on one side of Lake Simcoe.