Looks a lot like a dandilion... and other things. Snap off a leaf. Does it have milk or no? Is the vein of the leaf juicy and fleshy or more stiff and probably not so great for chewing on? What does it smell like?

not a dandelion at least not like the local dandelions, the stem is clear juicy not milky. I cant ID the smell but it does smell familiar. Tastes kind of like romaine lettuce

No, it's not a dandelion. Is the taste at all peppery? To me it looks like something in the Brassicaceae.

there is a NAME THAT PLANT FORUM ...

i swear i answered this yesterday.. are there multiple posts??.. if there is.. im sure i will find it in a minute or two.. lol.

welcome to the forums.. we will get you up to speed...

sterilize your media next time.. reduces weeds in your pots..

ken

i dont know why you started over.. but here is the link to the old post... proving im not insane.. lol

https://www.houzz.com/discussions/6376011/help-with-mystery-plant

It reminds me of arugula.

Also, FWIW, I grew an Italian chicory/endive mix a few years ago, and some of the plants looked like that.

Thank you for the help thus far as I stated earlier it kid of tastes like lettuce not bitter, I live in northern Alberta Canada and its an indoor garden planted in the winter so migration is unlikely . Best guess is some strange seed go mixed into the Thyme seed package so my real concern is "should I keep it growing or toss it with the soil as if it were some invasive weed?

I think your right

carolb_w_fl_coastal_9b

https://www.seed2go.ca/chicory/246-popular-frastagliata-catalogna-green-chicory-italian-dandelion-chicory.html

I grow Italian chicories and I don't think that's what you have. The chicory leaf shape is different, it has milky sap and the taste is very distinctly bitter.

I don't recall milky sap in the ones I grew. I used them for salad. It was a misticanza mix, so I don't know exact varieties, and the seed packet is long gone.

Allowing it to flower might solve the mystery...

Yes. If it's a chicory the flower will be blue.

It's

It's