Answer: According to the University of Florida, sunflowers grow quite happily in your gardening region. They require full sunshine and well-draining soil. Perhaps yours are wilting because their roots have outgrown their nursery pots. By all means plant them in the ground and water them in well. Then wait until the top inch or two of soil dries out before watering again. Too much water will make them wilt just as quickly as too little water. Best wishes with your new plants!
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