Duranta erecta 'Geisha Girl' or similar cv.

I can't tell if this is Will Goodwin or Silver Moon. Any thoughts?

They might have done better to stay in the teeny pots, at least 'til next Spring & by then you could also have gotten appropriately sized pots. For such small plants, w/ a such large volume of soil, the risk is of rot; that the mix will stay wet longer than the plant can take up the moisture often leading to rot or root rot in particular. One way to combat this is to use clay pots (unglazed), which will absorb SOME of that moisture. I'd be extra careful w/ your watering. Next time, just increase one pot size (maximum two), that's the generally accepted rule for repotting C&S.

Well, the first one is black nightshade, a common enough weed, particularly problematic in soybean fields where it is difficult to control with Roundup due to its late germination and rapid maturity.