Flower bed to handle full Florida sun?

I am redoing the sod in my back yard and am thinking of putting in a flower bed next to the brick wall at the edge of my yard. It gets hot Florida sun all day and I am not sure what flowers to put in it to survive the heat? They will have to be drought tolerant too as we can't water except once a week. I hope all you green thumbs can point me in the right direction. Thanks!
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