Q.Best Soil/seeds For Garden Tower?
I just purchased a plastic 5 tier garden tower. What is the best soil medium/mixture for this to grow veggies in Lake Nona/Orlando area? Where can I find best advice on what to grow in this for edible food? Can i put seeds in here or do I need to sprout and grow seedlings or grow or buy plants?

Certified GKH Gardening Expert
I believe most people use seedlings or transplants. For veggies, get a potting mix that says suitable for vegetables. It should be well draining, contain organic matter and have a pH near neutral.
For what to grow, there are lots of online sources for what to grow in pots (this website too).
https://www.gardeningknowhow.com/edible/vegetables/vgen/growing-a-vertical-vegetable-garden.htm