How to Grow Ume Kishu

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Ume Kishu

Prunus mume 'Kishu'

tree

Ume Kishu is a Japanese apricot cultivar prized for its small, high-quality fruit with excellent flavor and fragrance. This ornamental and productive tree is valued in East Asian cuisine and traditional medicine, producing delicate spring blossoms before bearing fruit. The variety is known for its compact size and heavy fruit production, making it ideal for home gardens.

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Example Ume Kishu timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Ume Kishu

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Ume Kishu

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

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

Growing Conditions

☀️
Sun: Full sun, 6-8 hours daily minimum, ideally 8+ hours
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Water: Moderate watering during growing season; keep soil consistently moist but not waterlogged. Deep watering 1-2 times weekly. Reduce watering in winter dormancy. Drought-tolerant once established.
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Spacing: 180 inches
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Days to maturity: 3-4 years to first significant fruit production
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Planting depth: Plant at same depth as root ball; graft union should be 2-3 inches above soil level

Soil

Type: Well-draining loamy soil with good organic matter
pH: 6.0-7.0
Amendments:
Compost Aged manure Perlite or coarse sand for drainage Balanced slow-release fertilizer

Growing Zones

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Thrives in zones 7-9, with best performance in zones 8-9

7a 7b 8a 8b 9a 9b

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Growth Stages

1

Establishment

1-2 years

Young tree (1-2 years) with developing root system and initial branch framework

Keep well-watered during first year. Stake if necessary for wind protection. Prune lightly to establish shape. Protect from extreme temperatures.

2

Flowering

2-4 weeks

Early spring blooms (February-March in most zones) with fragrant white or pale pink flowers before leaves emerge

Protect flowers from late frosts with frost cloth if temperatures drop below 28°F. Do not fertilize during flowering to avoid excessive vegetative growth.

3

Fruit Development

6-8 weeks

Small green fruit forms and develops through spring and early summer, gradually increasing in size

Thin fruit when marble-sized to 6-8 inches apart for larger, higher-quality fruit. Provide consistent moisture and balanced fertilizer. Monitor for pests.

4

Maturation

4-6 weeks

Fruit ripens to yellow or golden color (July-August) with fully developed fragrance and sweetness

Maintain regular watering schedule. Support heavy-laden branches with props if needed. Monitor for splitting if rains occur near harvest.

5

Dormancy

3-4 months

Tree enters winter rest after leaf drop (November-December), with minimal metabolic activity

Apply winter pruning to remove dead/diseased wood and shape tree. Reduce watering significantly. Avoid fertilizing. Tree requires 300-400 chilling hours below 45°F for proper flowering.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Black walnut (toxic root secretions) Other aggressive root-bound trees in confined spaces Dense shade-producing trees that compete for sunlight

Common Pests

  • Prune infected branches, improve air circulation, remove mummified fruit, apply fungicide in spring if severe

  • Hand-pick affected fruit, apply organic insecticide at petal fall, maintain clean orchard floor

  • Prune heavily infested branches, apply horticultural oil in dormant season, encourage beneficial insects

  • Strong water spray to dislodge, insecticidal soap, encourage natural predators like ladybugs

  • Hand-pick early morning, use Japanese beetle traps away from tree, remove damaged fruit

Uses

🍳

Japanese Umeboshi & Pickling

Culinary

Ume fruit is traditionally pickled with salt and red shiso leaves to make umeboshi, a staple Japanese condiment. The preserved fruit can be used in rice, teas, and as a digestive aid. [source]

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Fresh Fruit & Syrup

Culinary

Ripe Ume fruit can be eaten fresh though it is quite tart, or used to make traditional liqueurs like umeshu (plum wine), syrups, and jams. [source]

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Traditional Medicine

Medicinal

In Chinese and Japanese traditional medicine, ume fruit and flowers are used to treat digestive complaints, coughs, and fevers. The fruit is rich in citric acid and organic compounds with antimicrobial properties. [source]

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Ornamental & Fragrance

Household

The early spring blossoms are highly fragrant and ornamental, making Ume Kishu a prized landscape tree. Branches can be cut and brought indoors for floral arrangements and their delightful scent. [source]

🦋

Pollinator Support

Wildlife

Early spring flowers provide valuable nectar and pollen for emerging bees and insects. The fruit may also attract birds in late summer. [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 in July-August when fruit reaches golden-yellow color and yields slightly to gentle pressure. Fruit should have strong fragrance when ripe. Pick early morning for best flavor. Can be harvested slightly firm and allowed to ripen at room temperature for 1-2 days. Handle carefully to avoid bruising. Fruit stores well in refrigerator for several weeks.

Fun Facts

  • 🌱 Ume Kishu is the smallest-fruited ume variety, with fruit typically 0.75-1 inch in diameter, making it perfect for pickling whole
  • 🌱 The tree blooms before most other fruit trees, sometimes flowering as early as January-February in warm zones, and the fragrant blossoms are celebrated in East Asian culture and poetry
  • 🌱 Ume has been cultivated in East Asia for over 3,000 years and holds significant cultural importance in Japan, where the flowering season (ume matsuri) is celebrated similarly to cherry blossoms

Gardening Terms

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

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