What is the most foolproof plant or flower not to kill in Florida?

Mother inlaw tongue

I had a MIL plant but I killed that too. I gave up on house plants.

Mother in law tongue. Philodendron/

I'm also 'not too good' with houseplants -- a friend gave me 5 small plastic plants that look really nice (small but beautiful) and she explained that she'd found them in Asda and also B&M - hope these stores are in your area - if not, try on line (eBay or similar) - it's a nice feeling knowing I "can't" kill my new plants. Seasons Greetings

I live in central Florida and have been growing rosemary in pots, the fragrance is nice and they can be trimmed into shapes if you want. I kill cactus, too, and I have kept my rosemary alive for over a year now! You can also clip it to use in the kitchen for seasoning!