What kind of soil do i need to put into my wife's raised garden box which is approx 4 feet by 10 feet long and 2 feet high?

She plans to plant tomatoes, cucumbers and in the second box herbs.

In addition to my many projects on the horse fram i am building in sw clermont,florida, i promised my wife i would build a raised garden in our fenced in back year(we have 12 acres, but the back yard is about 200 feet by 75 feet fenced in).

Thank you;Cowboy Larry