Plum Trees - AU Rosa

The AU Rosa Plum is a high-performing Japanese plum variety developed by Auburn University to thrive in the South. Known for its beautiful reddish skin and sweet, amber-yellow flesh, this plum ripens early in the season, making it one of the first summer fruits to enjoy fresh, canned, or baked into desserts. Its consistent yields, disease resistance, and low chill hour requirement make it a favorite for home growers in warmer climates.

Key Features:

• Early Harvest: Ripens in late spring to early summer, producing juicy, sweet plums.

• Attractive Fruit: Reddish skin with sweet, golden-yellow flesh and excellent flavor.

• Southern Adaptability: Developed specifically for warm climates with a low chill requirement (~400–500 hours).

• Disease Resistant: Bred for resistance to bacterial leaf spot and other common plum issues.

• Pollination Required: Needs another Japanese plum (like AU Producer or Methley) for cross-pollination.

Mature Size:

• Height: 15–20 feet

• Spread: 12–15 feet

• Growth Rate: Moderate

USDA Hardiness Zones:

• Zones: 6–9

Care Instructions:

• Sunlight: Prefers full sun (6+ hours daily) for optimal fruit development.

• Soil: Thrives in well-drained, slightly acidic to neutral loamy soil.

• Watering: Keep soil consistently moist during establishment and fruiting season.

• Pruning: Prune in late winter to maintain shape and encourage air circulation.

• Pollination: Requires a second Japanese plum variety for fruit set.

Landscape Uses:

• Ideal for home orchards in southern regions

• Beautiful spring blooms followed by early, flavorful fruit

• Excellent for fresh eating, baking, or preserves

With its early ripening, disease resistance, and sweet flavor, the AU Rosa Plum is a top choice for southern gardeners seeking a reliable and productive plum tree.