What are the best plants to use for Planting in sand?

First you need to amend the soil for your area.What part of florida do you live in?

You need to go to your local nursery with a picture and soil sample and find what they use in your area. They mostly will guarantee the plants and the advise is professional and free.

I grew up a few miles from the ocean in NC, in basically a sandpit. My mother struggled with this for years. You will need to amend your soil if you want to plant anything other than natives. You can look around at permaculture sites for effective (albeit gradual) ways of doing that. Think compost and mulch, mulch, and more mulch...to retain moisture around the plants. Look up the Promised Land permaculture documentary about the guy who uses wood chips that compost. However...do look around at the nature around you. You'll find plants that have waxy, "tough" leaves, such as wax myrtle. Also the heath family, such as blueberries and related shrubs. Passiflora (passionflower) seems to adore dry, sandy, poor soil. Visit a native plant nursery; there are lots of plants that evolved for these conditions, and you'd be doing your pollinators a favor. In our vegetable garden, we grew just about everything but we used commercial fertilizers. You may have to do that while you are building up your soil. Or, build some raised beds on top of the soil for your vegetables. Good luck.

Go native! Check floridayards.org for information about native plants for your area. There are probably native plant nurseries close by, too. You will not only NOT have to amend your soil, you will also not have to mow, water, fertilize, or use herbicides or pesticides. My husband and I live at the beach in South Florida & our yard is lush, colorful & alive with birds & butterflies. And "yard work" takes about as much time as checking the mail...

I hear you. I'm on the west coast of FL. Gallardias love it hot and sandy, they are also known as blanket flowers. I did my whole front yard with them and only started with 3 plants. I just let them reseed and reseed. As they die off they add back to the ground and after a while actual florida type grass began to take root. I've also had success with spider plants, they can actually take over. They do like a bit of shade, spiderwort will grow and they have lovely purple flowers. They will continue to reproduce as well by tubers, same as the spider plants. Some folks like ground peanut which has a yellow flower. Hope this helps.

You may consider doing container plantings in that location instead of working with pure sand as soil.....