The Northeast cult favorite, a child of McIntosh.
AU Rosa Plum on Myrobalan (Spring 2025)

A highly disease-resistant, self-fertile plum.
AU Rosa grows on an upright, vase-shaped tree that is highly vigorous and precocious. The leaves are dark green. It is an excellent trouble-free plum for the home orchardist or the commercial grower, with resistance to leaf scald, bacterial canker, bacterial fruit spot, bacterial leaf spot, and black knot. What more could you want! AU Rosa is reported to be self-fertile, but we recommend partnering it with at least one other Japanese plum for optimal productivity.
This plum will flower profusely in spring and produce a Early-season crop (about 48 days before Stanley) of medium-sized red plums. The flesh is yellow, excellent for fresh eating, and stands up well to handling and shipping. This is a great plum for the kids, or for local and roadside markets. AU Rosa is a cling-fleshed plum.
The "AU series" of plums comes from the breeding program at the University of Auburn in Alabama. AU Rosa in particular was developed to meet the need for disease-resistant cultivars that would perform well in the Southeast.
The Fruit
Fruit Type
Category: Plum
Subcategory:
Japanese, Self-Fertile
Fruit Uses & Storage
Uses: fresh eating, jam, baking, canning, freezing, jelly
Storage duration: less than one month (approximate, depending on storage conditions)
Fruit Appearance
Skin color: red
Flesh color: yellow
Fruit Origins
Parentage: Santa Rosa x Starcher No. 1
Origin: Alabama
Introduced in: 1990
Introduced by: ALAES, University of Auburn, Alabama
The Environment
Calendar & Geography
USDA zones: 5 - 8
Chill hours: 750
Ripening date: Jul 15 (approximate, in New York State) 48 days before Stanley
Tree Height & Spacing
glossary
Rootstock: Myrobalan Rootstock
Rootstock size class: Standard (100% Size)
Tree spacing: See details
Good for wildlife planting? N
Diseases & Pests
glossary
Bacterial Canker of Stone Fruit: Resistant
Bacterial Spot: Resistant
Black Knot: Resistant
Brown Rot, Blossom Blight, Fruit Rot: Resistant
Pollination
Pollination Factors
glossary
Bloom group:
Is it self-fertile? Y
Is it fertile? Y
Ploidy: Diploid
Rootstock size class:
Standard (100% Size)
Pollination Partners
This table shows the first few results from a full search for pollenizers of AU Rosa Plum on Myrobalan. Please see our Pollenizer Search to run other queries and read how the application uses various factors. Also read more about fruit tree pollination.
See all pollination matches for AU Rosa Plum on Myrobalan
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