Tropical/Sub-Tropical Perennials that can set seed first year grown from seed

I am interested in Perennial tropical plants which could be grown in colder climates as annuals and also produce seed which can be saved and used for the next year. I am thinking of plants like Moringa or Popcorn Senna, Senna alata

I would like to use them as chop & drop plants while also possibly selecting for more frost tolerance or cold hardiness, potentially ending up with a hardy variety.

Any ideas would be helpful. Edible or ornamental value is ideal.  

The book "Push The Zone" by David the Good has a lot of info on that sort of thing...mostly fruit trees but it makes one think and there are sooo many possibilities.

Thanks! That one has been on my list of books to purchase for a while, good to know.

Tomato, tomatillo and tamarillo.

Pigeon pea.  I'm trying some from seed I got out of Texas.  I'm hoping I can mulch it heavily and overwinter it here in panhandle Florida.  Not sure yet about how much biomass they will provide, but they are a legume and the peas are edible (see Caribbean peas & rice).

Banana!  Oh, not from seed, I suspect.  From pup you might get more pups from a dwarf variety in one year.  Great biomass.  Big in agroforestry systems in the tropics.

Roselle might work.  Grows pretty fast, a lot of biomass, and you should get seed within a year.  I did here.  Suspect it will overwinter for me with heavy mulch too.  Last year's didn't get mulched and didn't make it, but it was a cold winter here.  6 or more hard freezes which is very unusual. The pods are used for juice/tea,  The leaves are edible.  And definitely ornamental.

By Pigeon Pea I assume you are talking about Cajanus cajan? There are 3 or 4 different plants called pigeon peas. That is one I have considered.

I am working on trying out some of the different hardier edible bananas. Roselle is one I have been curious about but haven't tried yet, will probably get some seeds for that next year. Edible hibiscus/Silk flower, Abelmoschus manihot is another similar plant I plan on trying.

I just ordered some northern adapted pigeon peas from Truelove seeds. I used to grow them when I lived in West Africa. Glad to see someone has selected a variety more amenable to northern day length.

https://trueloveseeds.com/products/northern-adapted-pigeon-peas-gandules