PRUNUS salicina ‘Santa Rosa’

Plum –

0734 Although native to China, this small shrubby deciduous tree takes its common name from the country in which it has long been cultivated for its juicy flavorful fruit. Japanese plums are now grown worldwide. White flowers in late winter or early spring give rise to green-, red-, yellow-, blue-, or purple-skinned fruit with yellow, red, or green flesh. They ripen in late spring or summer, depending on the variety. Rounded, glossy leaves follow the flowers.

Japanese plums do best with full sun, fertile well-drained soil, some winter chill, and heavy annual pruning. Their flowers and subsequent fruiting are highly susceptible to late frosts. Many cultivars require a partner cultivar to fruit. Japanese plums make excellent plants for the culinary garden or for an espalier.

Winchester Gardens generally stocks this item. 

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Plum
Santa Rosa
Tree – Fruit
6-10
Winter, Spring
White
Green
No


Yes



10-20′
10-20′

Site Selection
Select a site that offers loamy, well-drained soil in full sun. Avoid frost pockets.

Planting Instructions
Set bare-root trees atop a small mound of soil in the center of the planting hole, and spread the roots down and away without unduly bending them. Keep the graft union an inch above the soil line. For container-grown trees, remove the plant from its pot and eliminate circling roots by laying the root ball on its side and cutting through the roots with shears. Don’t cover the top of the root-ball with backfill because it could prevent water from entering. Space standard-size varieties 20 to 25 feet apart, dwarfs 15 to 20 feet apart.

Care
Water young trees heavily every week through the first season. Train Japanese trees to an open center shape; train European trees to a conical shape with a central leader. Japanese plum trees benefit from a moderate fruit thinning; do not thin European plums unless the crop is especially heavy. Plums are relatively pest-free, but may be visited by the plum curculio, black knot disease, and brown rot. Contact your Cooperative Extension office for information on managing pests in your area.

Harvesting Tips
Harvest European plums when they are tree-ripe. They will be a little soft and should come off easily with a slight twist. Late maturing varieties should be near ripe with firm flesh for storing for a few weeks. Pick Japanese plums slightly early and allow them to ripen in a cool place.

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