It's growing straight up. A closeup of the leaves and the second shot shows it growing straight up against the wall behind the Hosta.

Don't know your plant but must say, that's one very impressive hosta.

It reminds me a lot of a weeed I sometimes find around here and I quickly pull it out before it produces blooms and seeds.
It could be something else, but I doubt it.
Mine also grow rather tall, and they have snappy hollow stems.
if no-one can help with an ID, you could let it bloom and then we can figure out. Can you take a pic with the "TOP" ? Maybe there's something already going on there.

You might be thinking of Giant Hogweed Calin?

http://www.trca.on.ca/gianthog...

http://threatsummary.forestthr...

http://thelivingstonpost.com/b...

It does look to have hollow stems, possibly in the same family but the leaves look different.

The leaves do look different and there are no spikes on the stem.

Thank you jmorth!! I love that Hosta!

Maybe wild Parsnip? The leaves are "rounder" though. I think, just to be safe, I'll have Hubby dig it out today....it's right in the doorway that we use to put the geese to bed.

It looks very much like wild Parsnip Pastinaca sativa


http://www.cbif.gc.ca/pls/pp/p...


http://www.omafra.gov.on.ca/en...

Also wanted to add.....Happy Canada Day

My first thought also was Giant Hogweed:

http://news.nationalpost.com/2...

http://www.web2.mnr.gov.on.ca/...


Wild Parsnip can also cause some problems so tell your hubby to be careful when he digs it up:

http://www.cbif.gc.ca/pls/pp/p...

http://www.healthunit.org/haza...

I finally ripped out the Giant Hogweed that was growing in my beds yesterday. I had on like a full hazmat suit to do it, too. Tulle over my face and head, cap, full-coverage rain suit, long rubber boots and elbow-length rubber gloves. May seem like overkill, but I'm thinking that my skin condition might have been caused by pulling Hogweed weed unprotected last year. So, yes, please do have a care in removing any of these plants! It's a long-lasting, irritating and scarring affair if it gets on you and you're exposed to sunlight.

Chelle: I don't blame you for being so protective of your skin ... that weed sounds like scary stuff! I don't know if we have it down here but if I ever see anything that resembles it I will dress accordingly too ... and then put on a pair of disposable gloves when throwing all my clothes in the washer.

Nooo, neither of the plants you mentioned is the one I am referring to.
This one, always growing tall, kinda slender, and makes either small yellow or white flowers but individual ones. And the leaves kinda have a blue-ish hue. Well, not like this pic above.
If I don't forget and have time, i will take a pic. I am sure there's some weeds in my garden

The leaves remind me of sow-thistle Calin, I checked one I have but it has soft spines at the edges. This morning I spotted others next to the spiny one which resemble these leaves but they don't reach that height, there might be one which does in Ontario. I'm thinking more along the lines of Asteraceae, could easily be wrong!

See how similar the leaves and stem are to Sonchus oleraceus ..

http://luirig.altervista.org/c...

http://luirig.altervista.org/s...

http://www.thewildflowersociet...

A type of prickly lettuce!

Lactuca serriola .. is the midrib under the leaves spiny?

http://www.naturemanitoba.ca/b...

http://www.kitchenproject.com/...

Lactuca biennis? Tall Blue Lettuce

http://willowhousechronicles.w...

http://extension.umass.edu/lan...

http://plants.usda.gov/java/pr...

Wow Janet,
:) you are taking this seriously
this is the plant it reminded me of ...

I wouldn't do it if I didn't take it seriously Calin.

Your plant is the same as what I have and it looks like Sonchus oleraceus, they do vary a little.

http://luirig.altervista.org/p...

http://flora.nhm-wien.ac.at/Se...

Wild lettuce! who'da thunk it? I'll go out and check for spines

The database has no photo's of Sonchus oleraceus *hint* *hint*:

Smooth Sow Thistle (Sonchus oleraceus)


Y'all can earn some acorns by uploading your photo's.

Or maybe Lactuca canadensis?:

http://www.illinoiswildflowers...

http://gobotany.newenglandwild...

No pic's of this one in the ATP database either: Wild Lettuce (Lactuca canadensis)

I think that's it. It does have spinies under the leaves.

We have a couple of types of Sonchus down here in Florida and I think one has sort of pricklyish leaf undersides but it doesn't get real tall; at least I think it's Sonchus I'm thinking of. I may be confusing it with Youngia japonica though, the leaves look similar

Here's another link with info regarding Sonchus oleraceus which is possibly what you have:
http://www.iewf.org/weedid/Son...