Plant Quick Guide
Growing Zones:
Mature Height:
Mature Width:
Sunlight:
Spacing:
Chill Hours:
Growth Rate:
Flower Color:
Harvest Time:
Years to Bear:
Pollinator:
Does Not Ship To:
Plum Trees - AU Rubrum
USDA Hardiness Zones: 6-9.
Description
The 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 plum diseases, making it a reliable choice for southern gardeners.
Key Features:
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Bold, Sweet Flavor: Firm, juicy flesh with a rich, sweet flavor that’s perfect for fresh eating or preserving.
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Deep Red Skin and Flesh: Gorgeous red skin and flesh with a visually striking appearance.
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Mid-Season Harvest: Ripens in mid to late summer, typically from July to August.
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Disease Resistance: Highly resistant to bacterial canker, bacterial leaf spot, and other common plum diseases.
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Ornamental Beauty: Attractive spring blossoms add charm and attract pollinators to your garden.
Mature Size:
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Height: 15-20 feet
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Spread: 15-20 feet
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Growth Rate: Moderate
USDA Hardiness Zones:
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Zones: 6–9
Care Instructions:
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Sunlight: Prefers full sun (6+ hours daily) for the best fruit production and flowering.
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Soil: Well-drained, fertile soil with a pH of 6.0–7.0 is ideal.
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Watering: Keep soil consistently moist during the growing season but avoid overwatering.
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Pruning: Light pruning in late winter to maintain shape and improve airflow.
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Pollination: Cross-pollination with another Japanese-type plum, such as Methley or AU Cherry, is recommended for optimal fruit set.
Landscape Uses:
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Great for home orchards and small to medium-sized gardens.
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Provides ornamental beauty with its stunning blossoms and striking fruit.
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Ideal for fresh eating, preserves, and making baked goods.
With its bold flavor, attractive red fruit, and exceptional disease resistance, the AU Rubrum Plum is a fantastic addition to any garden. It offers reliable fruit production and ornamental value, making it a top choice for gardeners in southern climates.
Shipping
At Plant Me Green, we carefully handle, package, and ship every order to ensure your plants arrive healthy and ready to thrive. All orders ship via FedEx Home Delivery®, typically the next business day after checkout.
- We offer $15 flat-rate shipping on all eligible orders.
- Orders over $100 ship FREE.
- Replacement tree shipments are $15 per box.
Plant Me Green ships from multiple nursery locations, including Oregon, Tennessee, and Florida. If your order contains items from more than one location, plants may ship separately and arrive at different times.
🚨 Please note: We are unable to hold orders. To ensure your plants arrive at the right time, please place your order as close as possible to when you would like to receive it.
If you have any questions concerning transit time for your order, please feel free to contact us at info@plantmegreen.com or toll free 855-817-5268.
Due to strict agricultural laws, we cannot ship to the following locations:
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Alaska
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Hawaii
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Puerto Rico
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International destinations
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California and Arizona orders are limited to approved items only and may not apply to all products.
How to Plant

STEP 2) Once you've located the perfect spot, the hole you are digging must be at least double the width and as deep as the root system you are planting.
STEP 3) Remove the plant from the pot and place the root ball in the hole. The top of the root system should be level with the ground. Before placing the tree or shrub in the hole, use your hands to gently break up the root system.
STEP 4) Once the plant is in place, backfill the hole with native soil and any leftover potting material.
STEP 5) Pack down the soil to eliminate any air pockets.
STEP 6) When finished, water thoroughly.
Care Guide







