The last pic shows a Mandevilla (AKA Dipladenia.) A tropical vine that can not survive outside during cold weather.

Just a guess, my first impression of the first one was that of a Hypericum.

I think the first one is a Baptisia, which is fully hardy in NH. Now would be a good time to plant it in the ground and mulch it. It may be a type that can get to 5' in all directions (Baptisia australis) so plan for that in placing it.

For the Mandevilla vine, plant it in a larger pot (2 or 3 gallon I would guess), and you can leave it outdoors until you start getting nighttime temperatures in the 30's. Then it needs to be inside at night, but if you are able to move it in and out, it can be outdoors when it is warm. Or just keep it in a sunny spot indoors with some type of pole (such as a stout bamboo pole) or trellis. Let it dry out between waterings since it will lose many leaves and only grow slowly, and you don't want it to rot. In spring put it out in the shade on warm days, but don't let it get cold since it is a tropical vine, so bring it in at night and don't put it out on cold days. It need to get used to sun again since the window provides much less light than outdoors. You can cut it back in spring if it looks too ratty and it will resprout quickly to provide you flowers next summer.

Baptisia I agree.