Gardens
There are many books available in Florida regarding tropical plants since the DR has a climate very similar to Florida. Another good way to go is to visit jardinieras (plant nurseries), also a visit to the Santo Domingo botanical garden would help, it's in the north part
of the city and a bit hard to get to. I have gone there a few
times and got good ideas as to what plants do well here.
Another very good option, which I did with very satisfactory
results since he's now landscaping our house, was to talk with
Sr. Juan Hausen who has ample knowledge of tropical plants and
has a large nursery. If you want more information contact him at
Hausenlandscape.com. It may avoid you making costly mistakes.
You can also go to bookstores but books here are very costly,
used books are hard to find & also not cheap. Well, good luck with
your projects. Let us know when you have veggies to give away!