Thank you!Pretty sure the first picture is a dead nettle, with some violet mixed in, the one with the purple flowers and heart shaped leaves. Both are safe.
There are two plants in the second picture. I don’t know the one with the lacy leaves (I circled it). I’m not sure the second is mugwort, that plant gets very tall. I think you may have a buttercup; have you ever seen it bloom? It will have a yellow flower with five petals. Or perhaps white and yellow petals with an interesting little seed bump that grows in the middle—Pennsylvania has more than one kind of buttercup. You can wait to see if one gets tall with a purplish flower spray or the other stays small and has that yellow/white flower. There is little clover as well down at the bottom; I circled it. If the one turns out to be buttercup, you may find lots of warnings that it’s toxic. It is not toxic to Russians; they eat a ton of it in their home range and we have plenty of long term owners that feed it. My Russian loves it.
I don’t know the third, although it looks familiar.
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