#1 is Desmodium sessilfolium (Sessile-leaved Tick Trefoil) #2 is Lespedeza cuneata (Sericea lespedeza). #3 looks like Lespedeze stuevei (Tall Bush Lespedeza) Interesting that all the plants you've posted are legumes (Fabaceae) and three of the four are Lespedezas.

might be a akebia. quinata maybe. does it flower small pink fragrant blooms?

#1 pull it all out & pot up for easy care pots in part shade to tuck in around other plants, but don't let the trailers root... #2 'Beacon Silver' Lamium (one of my favorite slug & rabbit resistant plants that grows in shady conditions) Easy to divide in early spring or really anytime you can give it good soil & moisture. Received a big overgrown unpruned hunk of it last November. I clipped it back, divided the roots & planted the cuttings all in nursery bed. Now I've planted out lots of divisions this spring & there are still more in the nursery bed taking off nicely. For me it looks tatty after about 3 weeks of blooming mid-summer & if I cut it back I get nicer looking foliage that lasts rest of the season as long as soil stays moist. If soil dries out it gets darker looking patches that I've read is a type of virus & nothing we can do about it. Everything else looks good around it, so I don't worry though I prefer my other lamiums for foliage I love the magenta blooms on 'Beacon S.' Another with the same bloom color is 'Red Nancy' I think with nearly all white leaves. I have that as an accent in XL pots of perennials in part shade. Corrine

Many thanks jay_6a, I now have an id. I am so looking forward to seeing these lovely blue flowers as I have never grown this plant before. I thought these plants were the same when they were younger, but as you can see they are very different. So I posted them on this website. Yes, I do live in a tropical climate and plants grow very easy here. Unfortunately we are on water restrictions, so keeping up the water is extremely difficult as we have had no rain for quite a while now. I bought a Rhodanthe a couple of years ago. I agree, it is a very nice plant. but somehow I murdered it, I think I killed it with to much kindness, which I tend to do at times. I love playing in my garden and I grow quite a few plants from seeds and cuttings. Here is a couple more photos for you. Mary thanks once again.