Give it a little time. Some great perrenials will do great in a goldilocks setting that makes them happy. Looks like it might be something nice like Brunerra or something.

The bigger plant in the second pic reminds me of Campanula rapunculoides.

If it’s not the campanula, could they be Rudbeckia?

Now I'm wondering if it might be Comfrey.

Not comfrey.

Both Rudbeckia and Comfrey have pointier leaves. And so does

Campanula rapunculoides (Creeping Bellflower), here's a photo of Campanula.

The basal leaves in Campanula rapunculoides look quite different from the upper stem leaves so your pic Kathleen is in this case irrelevant.

How hairy is the plant being asked about?

Self seeded from the looks of it. Any old stalks or larger plants nearby?

I wish it was a Synthris but I don’t quite think it is.

Definitely Campanula, probably rapunculoides, and definitely foe. Very difficult to get rid of in my Burnaby BC garden.

6it is now developing more pointy leaves. So I think it is campanula.

Doesn't it have pretty flowers?

I can see it being a pest, it's scattering all over this flower bed.

Forget the flowers, try to get rid of it as quick as you can!. That is, if it really is Campanula rapunculoides ;-(

Dig up a little and see how far the roots go--you won't find an end to them. Consider them the non-vining version of bindweed. There are lots of campanula out there, none like this one.

RLGS,Can you give the scientific name of this non binding bindweed. I've never heard of it before. And while we're on the subject of names..................

I guess I wasn't clear. Bindweed would be the common name of Convolvulus arvensis, an aggressive spreading vine, difficult to eradicate because if its ability to regenerate from the smallest piece of root, tolerates pretty much every soil type, and is hardy ... almost everywhere! (couldn't find a citation for this :-))

So my point is that Campanula rapunculoides is all of the above, except it's not a vine.

The creeping bellflower blue flowers stalks grow about waist high with blue flowers all along the stalk. It is blooming now 7/3/18 in many yards in the Chicago area. It appears to be a bumper crop this year in this area. The flowers don't look bad but the plant is very invasive and nearly impossible to get rid of. The yards/gardens it is blooming in are unkept yards/gardens. Once you have you will never get rid of it. The roots go down a good 6 inches. I have gotten rid of it in small areas and I keep it out of those areas with vigilance. The flower stalks will pull out easily but the plant remains. It spreads by rhizomes and by seeding. I pull the flower stalks so at least it won't reseed