Japanese Apricot
Prunus mume · Chinese Plum · UmeUSDA | Grow Zone
6-9Outdoors all year in zones 6 to 9. Anywhere colder, keep it as a houseplant. Protect it below 32°F.
- Light
- Full sun, 6-8 hours
- Water
- Deeply once a week
- Humidity
- 40-60% humidity
- Temperature
- 60-75°F (15-24°C)
- Difficulty
- Intermediate
- Growth
- Moderate
- Mature size
- 15-25 ft tall
Prunus mume, commonly known as Japanese Apricot or Chinese Plum, is a beautiful flowering tree valued for its stunning blossoms and delicious fruit. Native to East Asia, it is cherished for its ornamental appeal and culinary uses, making it a popular choice among gardeners.
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Ideal temperature
60-75°F is where it grows fastest. Below 32°F cold damage starts.
Spacing and harvest
- Mature size
- 15-25 ft tall
- Plant apart
- 180-240 in
- Frost
- Half hardy: light frost only
Everything it needs
9 essentials at a glance
Watering
Prunus mume prefers consistently moist soil but should not be waterlogged.
Water deeply once a week during the growing season, reducing frequency to every 10-14 days in winter. Signs of over-watering include yellowing leaves and root rot, while under-watering can cause wilting and leaf drop.
Light
This plant thrives in full sun, requiring at least 6-8 hours of direct sunlight daily.
Ideal placement is in a south or west-facing garden bed. It can tolerate partial shade but may produce fewer flowers and fruits in such conditions.
Soil
Prunus mume prefers well-draining soil with a pH range of 6.0 to 7.5.
A mix of loamy soil and sand is ideal to ensure proper drainage. Avoid heavy clay soils that retain too much moisture.
Humidity
This plant enjoys moderate humidity levels, ideally around 40-60%.
To increase humidity, mist the leaves or place a humidifier nearby. Signs of low humidity include browning leaf tips and leaf drop.
Temperature
Prunus mume thrives in temperatures between 60-75°F (15-24°C) and is hardy in zones 6-9.
It can tolerate brief cold spells but should be protected from frost during flowering.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10, applying it in early spring and again in mid-summer.
Fertilize every 4-6 weeks during the growing season. Signs of nutrient deficiency include stunted growth and yellowing leaves.
Pruning
Prune Prunus mume in late winter or early spring before new growth begins.
Use sharp, clean pruning shears to remove dead or crossing branches, and shape the tree to encourage an open center for better air circulation. Deadheading spent flowers can promote more blooms.
Repotting
Repot every 2-3 years or when the roots outgrow the pot.
Signs that it needs repotting include roots emerging from the drainage holes or stunted growth. Choose a pot 1-2 inches larger in diameter and follow with fresh potting mix.
Propagation
Propagation can be achieved through seeds or grafting.
For seeds, stratify them for 30 days in a cold environment before planting in spring. Grafting should be done in late winter or early spring using healthy scions from a mature tree.
When it's unhappy
Leaf Spot
Why it happens
Fungal infections due to high humidity and poor air circulation.
How to fix it
Improve air circulation and apply a fungicide if necessary. Remove affected leaves promptly.
Powdery Mildew
Why it happens
High humidity and low air circulation.
How to fix it
Ensure proper spacing between plants and apply a fungicide to affected areas.
Fruit Drop
Why it happens
Environmental stress, such as drought or excessive rain.
How to fix it
Maintain consistent watering and avoid over-fertilizing to reduce stress on the plant.
Yellowing Leaves
Why it happens
Nutrient deficiency or over-watering.
How to fix it
Check soil moisture and adjust watering habits, and consider fertilizing if nutrient deficiency is suspected.
Wilting
Why it happens
Under-watering or root rot.
How to fix it
Check soil moisture levels, water deeply if dry, and ensure proper drainage to prevent root rot.
Care through the year
Spring
In spring, ensure adequate watering as the plant begins to bloom. Fertilize with a balanced fertilizer to support new growth.
Summer
During summer, maintain consistent moisture and monitor for pests. Prune any dead or damaged branches after flowering.
Fall
In fall, reduce watering as the plant prepares for dormancy. Apply mulch to protect roots from cold temperatures.
Winter
In winter, protect the plant from frost and extreme cold. Limit watering to prevent root rot, and avoid fertilizing during this dormant period.
Toxicity & Safety
Prunus mume is generally non-toxic to pets and children. However, the seeds contain cyanogenic compounds, which can be harmful if ingested in large quantities, causing symptoms like nausea and dizziness.
Good to know
How often should I water my Prunus mume?
Water your Prunus mume deeply once a week during the growing season, and reduce to every 10-14 days in winter to prevent over-watering.
What type of soil is best for Japanese Apricot?
Prunus mume prefers well-draining soil with a pH of 6.0 to 7.5. A mix of loamy soil and sand is ideal for healthy growth.
When is the best time to prune my Chinese Plum?
Prune your Prunus mume in late winter or early spring before new growth begins to maintain shape and remove any dead or crossing branches.
Why are my Ume leaves turning yellow?
Yellowing leaves can indicate over-watering or nutrient deficiency. Check soil moisture and consider fertilizing if necessary.
How can I propagate Prunus mume?
You can propagate Prunus mume through seeds or grafting. Stratify seeds for 30 days before planting, or graft healthy scions in late winter.
What is the ideal temperature for growing Japanese Apricot?
Prunus mume thrives in temperatures between 60-75°F (15-24°C) and is hardy in zones 6-9, tolerating brief cold spells.
What are common pests that affect Prunus mume?
Common pests include aphids and spider mites. Regularly inspect your plant and use insecticidal soap or neem oil to manage infestations.
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