Q: We have healthy five-year-old muscadine vines that do not produce fruit. They get plenty of sun. What is the problem?

A: Muscadines can have either “perfect” flowers, which can pollinate themselves or “imperfect” flowers, which require a perfect-flowered vine nearby. It’s possible you have imperfect flowered varieties. Consider planting a pollen producing vine like ‘Carlos’, ‘Fry’, ‘Nesbitt’ or ‘Triumph’ nearby. For details on growing muscadines, see xrl.us/muscadines.