Solved Is this a weed?

These have grown to about 4ft in size in a raised bed. They have pink flowers which surprised me as I only planted seeds with blue or white flowers

Can anyone ID this for me please?

 

it would have been most helpful to have seen a pic showing the flowers.
Plants from just leaves are hard.
It may be Impatiens glandulifera?

Did the flowers look like this?

impatiens glandulifera - Google Search

 

I’ve just uploaded a picture showing the flowers, looks similar to what you posted.

 

Thank you.
Yes...that is the Impatiens glandulifera.
It is very invasive and miles of it can be found along the river banks and edges of farmers fields.
Once there nothing else will grow under it. it is a pest.
The seed capsules are cute...but when ripe and touched explode sending the seeds far and wide.

 

Oh no! Thanks for your help. My beds are full them and some are very rigorous as they’re quite established with thick roots. Right, time to see if I can get rid.

 

Fear not.....They pull out very easily.
Infact volunteers are trying to clear areas of this weed simple by pulling it out...far safer than chemicals.
It is a shame as the flowers are really beautiful.

 

OK thanks both, it came out fairly easily as you indicated. I'm nowhere near any lakes, rivers etc.