I have had Euphorbia sap in my eyes after doing some cutting and then (stupidly) rubbing my eyes. Although I did not go blind, I couldn't see well, and it was certainly the most irritating physical experience in my life. It felt as though someone was jabbing my eyes with an ice pick. This lasted about 2 days. My eyes dried out from too many tears, and I had to flush them every few minutes the whole time. Needless to say I didn't get a "wink" of sleep during the ordeal. When handling any Euphorbia, it's best to wear disposable gloves and wash thoroughly before touching anything else. I learned this the hard way. Now you don't have to go through the same thing.

Beautiful plant, but be very careful. It can be extremely difficult to remove from unwanted areas. A raised border planter won't necessarily be sufficient to contain spread--it can send rhizomes down and then laterally. (Picture down a raised planter and under a 3-4' concrete walkway.) If brave enough, I would put it in a solid bottomed planter with just drainage holes below, on top of solid concrete. And then be very careful with the pruning pieces. Definitely do not reuse the soil. I love the look of the plant, but don't dare introduce it into my CA garden.

I've looked at a billion trillion pictures of these goofy little eggplants. Solanum integrifolium is the best match. The pictures of the fruit match perfectly. The leaves are not a perfect match, but close. Thanks, everyone. This forum is a great resource. I’ll be back imposing on you every time another volunteer plant shows up.

I agree with Gary on #3 (which is a bit confusing since #1 is in a different post.) I think #2's squat plants may be some type of phlox, probably tall garden phlox, Phlox paniculata. No idea on the skinnier one.