Here are the last two for identification. The one with 2 pics has a tiny yellow flower and the seed pot pops. It's been flowering for a good month or so. The second plant has a violet flower and is also currently flowering -- thanks.
Thanks, Michael. We have impatiens in our garden ..but this isn't any type I've ever seen before as the flower is pretty non-descript ..plant structure itself is attractive though hence, why we kept some. Judging by the dispersion of seeds it looks like we will be having more of it next year too! It seems it is a native variety that was introduced to our garden via topsoil delivery? The Toadflax is nifty and a welcomed addition ..again, probably via new topsoil (?)