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How to Grow Mirabelle of Metz

Mirabelle of Metz

Prunus mume var. domestica 'Mirabelle de Metz'

fruit

Mirabelle of Metz is a small, golden-yellow plum variety renowned for its exceptional sweetness and complex flavor profile. It is a European heritage plum that originated in the Lorraine region of France and is prized for both fresh eating and jam-making. The tree is relatively compact and productive, making it suitable for home gardens.

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Example Mirabelle of Metz timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Mirabelle of Metz

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Mirabelle of Metz

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Mirabelle of Metz dates for your own zip code.

Growing Conditions

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Sun: Full sun, 6-8 hours minimum daily for best fruit production and flavor development
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Water: Moderate and consistent watering, especially during fruiting season. Water deeply 1-2 times weekly during dry spells. Reduce watering in fall to harden wood before winter.
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Spacing: 240 inches
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Days to maturity: 3-4 years to first significant fruit production; fully mature at 5-6 years
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Planting depth: Plant bare-root trees at same depth as in nursery; graft union should be 2-3 inches above soil line

Soil

Type: Well-draining loamy soil with moderate fertility
pH: 6.0-7.0
Amendments:
Compost or aged manure at planting Mulch layer (2-4 inches) to retain moisture Balanced fertilizer (10-10-10) in spring

Growing Zones

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Thrives in USDA zones 5-9, with best production in zones 6-8

5a 5b 6a 6b 7a 7b 8a 8b 9a

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Growth Stages

1

Dormant Period

3-4 months

Tree is leafless and resting during winter months (December-February in northern regions)

Apply dormant oil spray in late winter to control overwintering pests and diseases. Prune while dormant to establish structure. Protect young trees from frost crack with tree guards if temperatures drop below -15°F.

2

Budbreak & Flowering

2-3 weeks

White to light pink flowers emerge on bare branches in early spring, typically March-April

Monitor for late frost damage to flower buds. Do not prune during flowering. Provide bee-friendly habitat to ensure pollination. Mirabelle is self-fertile but cross-pollination increases yield.

3

Fruit Set & Growth

8-10 weeks

Small green fruit develops from pollinated flowers. Fruit grows rapidly from April through June

Thin fruit to 2-3 inches apart when marble-sized to ensure larger, sweeter plums. Water consistently during this critical growth phase. Apply nitrogen-rich fertilizer in early summer if needed.

4

Maturation & Ripening

4-6 weeks

Fruit transitions from green to golden-yellow as sugars accumulate. Ripeness peaks in August-September depending on location

Reduce watering slightly to concentrate sugars. Do not harvest unripe fruit. Watch for bird and pest damage as ripening progresses. Fruit is ripe when it gives slightly to gentle pressure.

5

Harvest

2-4 weeks harvest window

Fully ripe golden-yellow plums are ready for picking. Fruit may continue ripening for 1-2 weeks after harvest if picked at partial maturity

Harvest in morning when fruit is cool. Handle gently to avoid bruising. Store at room temperature for eating fresh, or refrigerate for extended storage. Continue watering after harvest to support tree vigor.

Companion Planting

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Plant with:

Bee balm Borage Thyme Garlic Chives Tansy Other plum varieties for cross-pollination

Avoid planting near:

Black walnut (produces juglone toxin) Fennel (inhibits most tree fruit growth) Brassicas in heavy concentrations (compete for nutrients)

Common Pests

  • Apply kaolin clay spray at petal fall and repeat every 7-10 days through early summer. Remove and destroy affected fruit immediately. Use yellow sticky traps. Introduce parasitic wasps.

  • Hand-pick beetles early morning and drop into soapy water. Apply neem oil or spinosad spray in evening. Use pheromone traps away from trees.

  • Remove mummified fruit from tree and ground. Apply sulfur or copper fungicide at pre-bloom and post-bloom stages. Improve air circulation through pruning. Avoid overhead watering.

  • Prune out infected branches during dormancy, cutting well below the visible knot. Burn or bury prunings. Apply fixed-copper fungicide in spring before bud break.

  • Spray strong water stream to dislodge. Apply insecticidal soap or neem oil. Encourage beneficial insects like ladybugs and lacewings.

Uses

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Premium jam and preserves

Culinary

Mirabelle of Metz is legendary for jam-making due to its high natural pectin content and intense sweet-tart flavor. The small size and minimal pit-to-flesh ratio make processing efficient. A single tree can yield 30-50+ pounds of fruit for preservation. [source]

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Fresh eating and desserts

Culinary

Mirabelles are exceptional for eating fresh due to their concentrated sweetness, subtle floral notes, and golden color. They are ideal for pastries, tarts, and compotes where their unique flavor profile enhances dishes. [source]

🍳

Liqueurs and spirits

Culinary

Mirabelle of Metz is the classic fruit used to produce the French digestive liqueur 'Eau de Vie de Mirabelle de Lorraine,' a protected regional product. The high sugar content and floral character make it ideal for fermentation and distillation. [source]

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Digestive and nutritional support

Medicinal

Mirabelle plums are rich in sorbitol and dietary fiber, traditionally used to support digestive health. The fruit contains vitamin C, potassium, and polyphenols with antioxidant properties. [source]

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Natural dye source

Household

The golden fruit and foliage yield warm yellow to amber dyes suitable for fabric and fiber arts. Historic use in Lorraine textile traditions. [source]

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

Harvest Tips

Harvest fruit in late August to September when fully golden-yellow and slightly soft to gentle pressure. Pick fruit with stems attached to minimize damage. The fruit will continue to ripen for 1-2 days after picking if harvested at partial maturity. Mirabelles are delicate and do not store long; use fresh within 1-2 weeks or preserve immediately for jam, compote, or eau de vie.

Fun Facts

  • 🌱 Mirabelle of Metz is one of only three plum varieties granted Protected Designation of Origin (PDO) status by the European Union, alongside Prune d'Agen and Quetsche; this recognition protects the authenticity and quality of plums labeled as 'Mirabelle de Metz.'
  • 🌱 The variety requires chilling hours (around 700-900 hours below 45°F annually) to set fruit properly, which is why it performs exceptionally well in continental European climates with cold winters.
  • 🌱 A single mature Mirabelle of Metz tree can produce 44-66 pounds of fruit annually once established, making it one of the most productive heritage plum varieties for home orchardists.

Gardening Terms

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

Full Sun pH Pollination
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