It will also so well in medium to higher light. The one caution for these is be careful not to overwater them; they have water storage organs of their own in their stems & roots, so in this respect we tend to treat them as succulent plants.

Probably a burning bush. Cut down to low stumps at end of winter. Do not prune again until some years of re-growth has resulted in size being more than you want, then repeat procedure. This way an attractive natural shape (above the stumps) can be maintained between renovations.

I don't have poke that grows at my place but I do have lots of Bittersweet Nightshade (Solanum dulcamara). I remove it from gardens, but I didn't go nuts (as many do) when my kids were tiny trying to nuke it and "protect them" from it. It provided a good teaching tool for berries that look edible but are not. I made sure they knew exactly what it looked like - just seeing it helped reinforce plant safety lessons. Poke can also provide that same learning and teaching experience. FataMorgana

By now you may have gotten an answer to your query, but if not the Fl Dept of Agriculture, County Extension Service may be most helpful. I have contacted them in the past with good results. Every county has an office, so just look up the dept of agriculture and find your county. The contact information will pop up. You can then submit your photo and contact info. I'm sure they will be able to identify your mystery plant.