Japanese Flowering Cherry
Prunus serrulata · Oriental CherryUSDA | Grow Zone
5-8Outdoors all year in zones 5 to 8. Anywhere colder, keep it as a houseplant.
- Light
- Full sun
- Water
- Weekly, deep watering
- Humidity
- 40-60%
- Temperature
- 60-75°F
- Difficulty
- Intermediate
- Growth
- Moderate
- Mature size
- 20-30 ft tall
The Japanese Flowering Cherry, known for its stunning spring blooms, is a cherished ornamental tree native to East Asia. Its delicate pink flowers and graceful branches make it a popular choice for gardens and parks, bringing beauty and elegance to any landscape.
Ask Vesper about Japanese Flowering Cherry
Ideal temperature
60-75°F is where it grows fastest.
Spacing and harvest
- Mature size
- 20-30 ft tall
- Plant apart
- 180-300 in
- Frost
- Hardy: survives frost
Everything it needs
9 essentials at a glance
Watering
Japanese Flowering Cherry trees prefer consistently moist soil, especially during their active growing season in spring and summer.
Water deeply once a week, allowing the top inch of soil to dry out between waterings. In the fall and winter, reduce watering to once every two weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and leaf drop.
Light
This tree thrives in full sun, requiring at least 6-8 hours of direct sunlight daily.
Ideal placement is in an open area where it can receive ample light, as this promotes healthy growth and abundant flowering. It can tolerate partial shade but may produce fewer blooms in such conditions.
Soil
Japanese Flowering Cherry prefers well-draining loamy soil with a pH range of 6.0 to 7.0.
A potting mix that includes organic matter, such as compost or peat moss, is recommended to ensure good drainage and nutrient retention. Avoid heavy clay soils that retain water, as this can lead to root rot.
Humidity
This tree prefers moderate humidity levels, ideally around 40-60%.
To increase humidity, consider misting the leaves or placing a humidifier nearby. Signs of humidity stress include leaf curling and browning at the tips.
Temperature
Japanese Flowering Cherry thrives in temperatures between 60-75°F (15-24°C).
It is hardy in USDA zones 5-8, tolerating cold down to -10°F (-23°C) but may struggle in extreme heat above 90°F (32°C). During winter, protect young trees from harsh frost.
Fertilizing
Use a balanced fertilizer with an NPK ratio of 10-10-10, applying it in early spring as new growth begins.
Fertilize every 4-6 weeks during the growing season, tapering off in late summer. Signs of nutrient deficiency include stunted growth and pale leaves.
Pruning
Prune Japanese Flowering Cherry in late winter or early spring before new growth begins.
Use sharp, clean pruning shears to remove dead or crossing branches, shaping the tree to encourage an open center for better air circulation. Deadheading spent flowers can promote more blooms.
Repotting
Repotting is typically needed every 2-3 years or when the roots outgrow the pot.
Signs it needs repotting include roots emerging from the drainage holes and stunted growth. Choose a pot 1-2 inches larger in diameter and follow these steps: gently remove the tree from its pot, prune any damaged roots, and place it in fresh potting mix.
Propagation
Propagation can be achieved through seeds, grafting, or softwood cuttings.
For seeds, collect from ripe cherries, stratify them for 30 days, then sow in spring. For softwood cuttings, take 4-6 inch cuttings in early summer, dip in rooting hormone, and plant in a moist potting mix. Grafting is best done in late winter or early spring.
When it's unhappy
Leaf spot
Why it happens
Fungal infections due to excess moisture and poor air circulation.
How to fix it
Ensure proper spacing between trees for air flow, avoid overhead watering, and apply a fungicide if necessary.
Powdery mildew
Why it happens
High humidity and poor air circulation.
How to fix it
Increase air circulation around the tree, avoid overhead watering, and treat with fungicides if needed.
Bark splitting
Why it happens
Rapid temperature fluctuations or excessive moisture.
How to fix it
Protect the tree from extreme temperatures and ensure proper watering practices to maintain consistent soil moisture.
Pests (aphids, spider mites)
Why it happens
High temperatures and dry conditions.
How to fix it
Regularly inspect the tree, wash off pests with water, and use insecticidal soap if infestations occur.
Care through the year
Spring
In spring, focus on watering regularly as new growth appears. Fertilize with a balanced fertilizer to promote healthy blooms and foliage.
Summer
During summer, ensure consistent watering, especially during dry spells. Monitor for pests and diseases, and prune any dead flowers to encourage more blooms.
Fall
In fall, reduce watering as the tree enters dormancy. Clean up fallen leaves to prevent fungal diseases and prepare for winter protection if necessary.
Winter
In winter, protect young trees from frost and extreme temperatures. Water sparingly, only when the soil is dry, and avoid fertilizing during this dormant period.
Toxicity & Safety
Japanese Flowering Cherry is non-toxic to pets and children. However, the seeds contain cyanogenic compounds, which can be harmful if ingested in large quantities. Symptoms of ingestion may include nausea and vomiting.
Good to know
How often should I water my Japanese Flowering Cherry?
Water your Japanese Flowering Cherry deeply once a week during the growing season, allowing the top inch of soil to dry out between waterings.
Why are my Japanese Flowering Cherry leaves turning yellow?
Yellowing leaves can indicate over-watering or nutrient deficiency. Ensure proper drainage and consider fertilizing if the soil lacks nutrients.
When is the best time to prune my Japanese Flowering Cherry?
The best time to prune your tree is in late winter or early spring before new growth begins, which helps maintain its shape and health.
What type of soil is best for Japanese Flowering Cherry?
This tree thrives in well-draining loamy soil with a pH of 6.0 to 7.0. A mix containing organic matter is ideal for healthy growth.
How can I increase humidity for my Japanese Flowering Cherry?
To increase humidity, mist the leaves regularly or use a humidifier nearby, especially during dry seasons or in heated indoor environments.
What are the signs of nutrient deficiency in my Japanese Flowering Cherry?
Signs of nutrient deficiency include stunted growth, pale leaves, and poor flowering. Regular fertilization can help prevent these issues.
Can I grow Japanese Flowering Cherry in a pot?
Yes, you can grow Japanese Flowering Cherry in a pot, but ensure it is large enough to accommodate the roots and provide adequate drainage.
Track this plant in your garden.
Set care reminders, log growth, and join a community of plant lovers.