Manchurian ash (Fraxinus mandshurica)

Also known as: Manchurian Ash, Chinese Ash

The Manchurian ash (Fraxinus mandshurica) is a deciduous tree, often reaching heights of up to 30 meters, and is well-adapted to the temperate forests of Northeast Asia. Its pinnately compound leaves transform into a striking yellow in the fall. The tree possesses a sturdy trunk that supports a wide, spreading canopy and features bark that becomes deeply furrowed as it matures.

One of the tree's notable adaptations is its production of winged seeds, known as samaras, which are efficiently dispersed by the wind. This, combined with its ability to thrive in cold climates, enables the Manchurian ash to establish and maintain its presence in diverse forest environments.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Manchurian ash

Lifespan

Perennial

Plant Type

Tree

Plant Height

12 m to 15 m

Spread

8 m

Leaf Color

Green Yellow Red Orange Purple

Flower Size

0.3-0.5 cm

Flower Color

Yellow

Images of Manchurian ash

Quickly Identify Manchurian ash

Identifiable by its compound leaves with 5-9 leaflets, grayish bark, and winged seeds (samaras). The leaves turn a brilliant yellow in the fall. The tree also has a rounded crown and can be quite tall.

Scientific Classification of Manchurian ash

Phylum

Vascular plants

Class

Dicotyledons

Order

Mints plantains olives and allies

Family

Olive

Genus

Ashes

Species

Manchurian ash

Planting and Growing of Manchurian ash

Care Difficulty

Easy

Watering Schedule

Every 3 days

Sunlight Requirements

Partial sun

Sunshine Duration

4-8 hours

Ideal Temperature

59-77℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Ceramic, Plastic

How to Water Manchurian ash?

When watering Fraxinus mandshurica, aim to deeply soak the soil until water starts to drain out of the bottom of the container to ensure the roots receive sufficient moisture. Avoid shallow watering, as it won’t penetrate the entire root system.

What are the symptoms of an underwatered Manchurian ash? ›

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How to save an overwatered Manchurian ash? ›

What Are the Sunlight Requirements for Manchurian ash?

Sunlight Requirements: Partial sun

Duration of light: 4-6 hours daily

Fraxinus mandshurica ideally enjoys partial sun, thriving with 4 to 6 hours of indirect sunlight. Proper lighting encourages healthy development and longevity.

What's the best type of sunlight for Fraxinus mandshurica? ›

How can you ensure this is achieved? ›

What benefits does ideal lighting bring to this plant? ›

More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Manchurian ash?

Ideal Temperature: 59 ~ 77℉

The ideal temperature range for growing Fraxinus mandshurica lies between 59°F and 77°F. Maintaining this temperature range ensures the plant can perform physiological processes efficiently, promoting healthy growth and development.

What Soil is Best for Manchurian ash?

Soil type: Loam, Sandy loam

Soil PH: 6.5 ~ 7.5

Fraxinus mandshurica prefers well-drained soil, which ensures that water does not stagnate around the roots, reducing the risk of rot. Well-drained soil promotes healthy root growth and better nutrient absorption. This tree benefits from soil with moderate fertility levels. Sufficient nutrients support its robust growth, enhancing its strong structural form and lush foliage without encouraging excessive growth that reduces resilience. Fraxinus mandshurica requires soil that can retain moisture yet remains airy and breathable. This balance prevents root dehydration, promoting sustained plant vitality even between waterings.

How to Fertilize Manchurian ash?

Fertilizer type: Balanced

For Fraxinus mandshurica, it is important to maintain a balanced approach to fertilization. Generally, a light application of well-balanced liquid fertilizer diluted to half strength is recommended when applied. Approximately 200 ml of diluted liquid fertilizer per tree should suffice, avoiding over-saturation of the soil.

How to Prune Manchurian ash?

Pruning Time: Spring, Summer

Start by removing any dead, diseased, or damaged branches. This not only helps in maintaining the tree's appearance but also promotes overall health by preventing the spread of diseases. Next, focus on cutting back any crossing or rubbing branches to enhance airflow through the canopy. Maintaining good air circulation reduces the risk of fungal infections. Lastly, shape the tree by trimming larger branches to maintain its majestic form, ensuring that no more than one-third of the crown is removed in a single pruning session to prevent stress. More About Pruning Techniques→

How to Propagate Manchurian ash plant?

Propagate Time: Spring, Early summer

Collect seeds in autumn when they have matured and dried on the tree. Clean and soak seeds in water for 24 hours to improve germination rates. Stratify them in a refrigerator for several weeks if needed.

In the spring, select healthy, disease-free branches and cut 6 to 12-inch sections from the new growth. Remove the lower leaves and treat the cutting base with rooting hormone before planting.

Place seeds or cuttings in well-draining soil, ideally in pots with a transparent cover to retain humidity. Water moderately and position them in indirect sunlight to avoid scorching.

More About Propagating Techniques→

How to Repot Manchurian ash plant?

Repotting frequency: Every 2-3 years

Mature Fraxinus mandshurica plants signal the need for repotting when roots begin to circle the pot or emerge from drainage holes. This typically happens in spring or autumn when the plant is naturally more active.

Select a pot that is approximately two to three inches larger in diameter than the current one. This ensures enough room for growth, reduces stress, and helps prevent root-bound conditions, promoting healthier development.

Opt for a rich, well-drained soil mix with organic matter. This choice provides essential nutrients, enhances aeration, and improves water retention, replicating conditions the plant naturally thrives in.