Plum Trees - AU RubrumThe AU Rubrum Plum is a striking hybrid developed by Auburn University, known for its deep red skin and rich, sweet flavor. This plum variety offers firm, juicy flesh with a beautiful red hue that stands out in both the garden and the kitchen. Ripening in mid to late summer, the AU Rubrum Plum provides a delicious harvest perfect for fresh eating, preserves, and baking. In addition to its excellent fruit, this variety is highly resistant to common