Now renamed Ficaria verna, I believe, aka Lesser Celandine.

the bee thing, that makes sense!! that does help...If you dont mind me asking one other question...I know that the nectar (4:1 sugar/water) is only good out for 3 days....so what I'm thinking is maybe I should only fill them part way...so as not to waste it. After looking at the feeders after 3 days (today is day 3 that I've seen them around) there is not too much gone. I have only seen a few hummers at a time feeding, and actually they dont BOTH feed at the same time, they are usually busy chasing each other off, so when the chase is done, ONE will come back and feed. I also have 3 mandevillas in bloom now and JUST NOW (as I"m typing) noticed them checking out those flowers... they are fascinating to watch...I'm just thrilled that they are here. thanks for your response.

I wonder if it will give me its usual purple flower as well. These scapes are definitely attached to the plant.There don't seem to be any other scapes in amongst the leaves. 100% sure it's not coming from another plant/bulb underneath. This is a very small raised planter about 3' long x18" deep, only 2 bricks high, and I filled it with old potting soil and compost. Do any other hostas do this?

Does it smell sweet? V odorata does. But there are lots of similar-looking Violet species many of which are unscented. When you say 'a pot at home' - these are hardy plants so the pot needs to be kept outside.