How to Grow Moseri Plum

Moseri Plum

Prunus cerasifera 'Moseri'

tree

Moseri plum is a ornamental and fruit-bearing cherry plum cultivar prized for its deep purple-red foliage and small, edible plums. It serves as both a decorative landscape tree and a modest fruit producer, offering early spring blooms followed by summer fruit. The tree is compact and manageable, making it suitable for residential gardens.

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Example Moseri Plum timeline · Pittsburgh, PA (Zone 6b)

Plant Moseri Plum
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Moseri Plum
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Moseri Plum dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours daily minimum

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Water: Regular watering during first 2 years to establish deep roots; mature trees need moderate water, approximately 1-1.5 inches per week during growing season. Reduce watering in winter dormancy.

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Spacing: 240 inches

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Days to maturity: 3-4 years to first fruit production

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Planting depth: Same depth as root ball; plant with graft union 2-3 inches above ground

Soil

Type: Well-draining loamy soil

pH: 6.0-7.0

Amendments:

Compost Peat moss Aged manure

Growing Zones

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Thrives in zones 4-8, with best performance in zones 5-7

4a 4b 5a 5b 6a 6b 7a 7b 8a 8b

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Growth Stages

Dormancy & Planting

Until bud break, typically late February-March

Bare root or potted tree in late winter; brown woody stems with no foliage; buds swelling

Plant in early spring before bud break. Soak bare root trees 2-4 hours before planting. Water thoroughly after planting. Apply 2-3 inches of mulch around base, keeping it away from trunk.

Spring Growth & Flowering

4-6 weeks

Purple-tinged foliage emerges; small pink to white flowers appear on branches before or with leaf emergence

Support new growth with regular watering. Monitor for spring pests. Do not fertilize heavily—nitrogen promotes foliage at expense of flowers. Trees typically self-fertile but cross-pollination improves fruit set.

Fruit Development

6-8 weeks

Flowers fade; small marble-sized green fruits form and gradually enlarge; foliage darkens to deep burgundy-purple

Thin fruit to 4-6 inches apart if heavy set, though Moseri plums are typically modest producers. Continue regular watering. Watch for fruit splits if watering is inconsistent. Prune only to shape tree.

Ripening

3-4 weeks

Fruits swell and deepen to red-purple color; small oval drupes 0.75-1 inch diameter; foliage maintains rich burgundy hue

Maintain consistent moisture; plums are prone to splitting with erratic watering. Reduce watering slightly if rainfall is heavy. Prepare for harvest.

Harvest & Dormancy

Harvest period 2-3 weeks; dormancy 4-5 months

Ripe plums with deep red-purple skin ready for harvest; trees naturally lose foliage in fall; branches become bare

Harvest ripe plums by hand, gently twisting and lifting. Use a cloth beneath to catch fruit. Stop fertilizing in late summer. Clean up fallen fruit to reduce pest habitat. Prepare for winter dormancy.

Companion Planting

Plan your garden →

Plant with:

Lavender Rosemary Sage Catmint Creeping thyme Yarrow

Avoid planting near:

Black walnut Other Prunus species (at distance to prevent disease spread) Brassicas (cabbage, broccoli)

Common Pests

Hand-pick beetles in early morning; use pheromone traps; spray neem oil in evening; encourage beneficial insects
Remove fallen fruit regularly; apply kaolin clay spray during fruit development; thin fruit to reduce pest habitat
Spray with strong water stream; use insecticidal soap; encourage ladybugs and parasitic wasps; neem oil if severe
Prune infected twigs well below visible knot; sterilize pruning tools; improve air circulation; destroy infected wood
Remove infected fruit promptly; thin tree for air circulation; avoid overhead watering; apply sulfur sprays as preventive

Uses

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Fresh eating & jams

Culinary

Moseri plums are sweet and can be eaten fresh off the tree, though yields are modest. The fruits are excellent for making preserves, jams, and compotes due to their pectin content and flavor. [source]

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Ornamental landscape tree

Ornamental

The deep purple-red foliage provides striking year-round color in the garden. Early spring flowers are delicate and attractive, making this a dual-purpose tree for both aesthetics and fruit production. [source]

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Wildlife food source

Wildlife

The fruits attract and feed birds and small mammals. Spring flowers provide early-season nectar for pollinators and beneficial insects waking from winter dormancy. [source]

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Traditional tonic uses

Medicinal

In traditional herbalism, plums are valued for their digestive properties and mild laxative effects. The fruit contains sorbitol which supports digestive health. [source]

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Dye production

Craft

The deep burgundy foliage and ripe fruits can be used to create natural dyes for textiles, producing purple and burgundy tones. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Plums ripen in mid to late summer (July-August depending on zone). Harvest when fruits are deeply colored and yield slightly to gentle pressure. Pick by hand with a gentle twist to avoid bruising. Moseri plums are typically small (0.75-1 inch) and modest in yield but are sweet and edible fresh or used in preserves. Fruit does not store long; use within 1-2 weeks.

Fun Facts

🌱 Moseri plum is a cultivar of Prunus cerasifera (cherry plum), which is the smallest species in the plum genus and is thought to be a natural hybrid of P. salicina and P. spinosa.
🌱 The 'Moseri' cultivar was selected and named in Europe for its ornamental foliage and compact growth habit, making it particularly popular in European gardens where it's valued as much for looks as for modest fruit production.
🌱 Unlike most plums which are self-sterile, Moseri plums are largely self-fertile, though fruit set and yields are generally lighter than standard plum varieties, with typical mature trees producing 10-30 pounds of fruit.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Bare Root Cultivar Full Sun Mulch Pollination

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