How to Grow Ume Nanko
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Ume Nanko
Prunus mume 'Nanko'
fruitUme Nanko is a premium Japanese apricot cultivar prized for its exceptional fruit quality and ornamental value. This small tree produces highly fragrant, flavorful fruit used in traditional Japanese cuisine and beverages. The variety is known for its excellent balance of sweetness and acidity, making it ideal for umeboshi (pickled plum) production.
When should you plant Ume Nanko in your zone?
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Example Ume Nanko timeline · Pittsburgh, PA (Zone 6b)
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Plant Ume Nanko
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Ume Nanko
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Ume Nanko dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 6-8, with protection possible in zone 5
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Get my Ume Nanko timeline →Growth Stages
Establishment (Year 1)
12 monthsYoung tree develops primary branches and root system; may produce minimal or no flowers
Focus on structural pruning; remove competing leaders; water regularly; mulch to retain moisture; avoid heavy fertilization
Vegetative Growth (Years 2-3)
24 monthsTree develops secondary branch framework; sparse flowering as tree matures
Continue formative pruning; thin branches to open center; maintain consistent watering; apply balanced fertilizer in spring
Early Flowering (Years 3-4)
4-6 weeksFragrant pink-white blossoms appear in late winter/early spring before leaves; some fruit set begins
Ensure good pollination (use second ume variety nearby); thin excess flower buds for larger fruit; protect from late frosts
Fruit Development (Spring-Early Summer)
8-10 weeksSmall green fruit emerges; gradually enlarges and develops characteristic color; skin becomes yellow-green to golden
Thin fruit to 4-6 inches apart for premium size; maintain consistent moisture; apply potassium-rich fertilizer; watch for pests
Harvest Maturity (Mid-June to July)
2-4 weeks harvest windowFruit reaches full size, develops strong fragrance, skin color deepens to golden-yellow; fruit becomes slightly soft when ripe
Monitor daily for ripeness; harvest at peak aroma; prune after harvest to maintain tree shape; allow adequate recovery before next season
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Knock beetles from branches into tarps early morning; remove fallen fruit; apply spinosad or kaolin clay spray; release parasitic wasps
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Hand-pick beetles in early morning; use Japanese beetle traps at distance; apply neem oil; release parasitic nematodes for grubs
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Spray with strong water stream; apply insecticidal soap; use neem oil; encourage beneficial insects like ladybugs and lacewings
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Improve air circulation through pruning; remove infected fruit immediately; apply sulfur or copper fungicide in spring; thin fruit
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Prune out infected branches; apply copper fungicide in early spring; avoid overhead watering; ensure good drainage
Uses
Traditional Umeboshi Production
CulinaryUme Nanko is the premier cultivar for making umeboshi, Japan's famous pickled plum condiment. The fruit's ideal sugar-acid balance and small to medium size make it perfect for this traditional preservation method. [source]
Ume Liqueur and Beverages
CulinaryThe fragrant fruit is traditionally used to create umeshu (plum liqueur) and other Japanese beverages. The high aromatic profile provides superior flavor compared to other ume varieties. [source]
Fresh Eating and Cooking
CulinaryWhile tart when fresh, ripe Nanko fruit can be enjoyed fresh or used in jams, syrups, and desserts. The exceptional fragrance enhances both sweet and savory preparations. [source]
Traditional Wellness
MedicinalIn traditional Japanese and Chinese medicine, ume fruit is believed to aid digestion, boost immunity, and provide antibacterial properties. Umeboshi in particular is a revered wellness food. [source]
Ornamental and Fragrance Value
OrnamentalThe tree's delicate pink-white fragrant blossoms in late winter provide exceptional ornamental value before most other plants bloom. Often cultivated as a specimen tree or focal point in gardens. [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 mid-June to early July when skin is golden-yellow and fragrant; fruit should yield slightly to gentle pressure. Pick fruit by gently twisting and lifting, or cut with pruners to avoid branch damage. Fruit continues to ripen for 1-2 days after picking. For traditional umeboshi, harvest slightly earlier when fruit is still firm. Store fresh fruit in cool conditions; use within 2-3 weeks for best quality.
Fun Facts
- 🌱 Ume Nanko is one of the most revered cultivars in Japan, with deep cultural significance dating back centuries; the variety name 'Nanko' refers to a legendary scholar.
- 🌱 Despite being called 'Japanese apricot,' Prunus mume is botanically closer to plums than apricots and is native to China, though perfected in Japanese horticulture.
- 🌱 A single mature Ume Nanko tree can produce 50-100 pounds of fragrant fruit annually, with peak production sustained for 20-30+ years.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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