Emerald tree (Radermachera sinica)

Also known as: China doll

Radermachera sinica, or the China Doll plant, is gaining popularity as a houseplant due to its compact, tree-like form. To thrive, it needs 4-5 hours of bright, indirect light daily. The soil should be kept moist but must drain well to prevent waterlogging. Despite being somewhat particular about its care, this plant is becoming a favorite among indoor gardeners.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting

Attributes of Emerald tree

Lifespan

Perennial

Plant Type

Tree

Plant Height

15 m

Spread

4.5 m to 6 m

Leaf Color

Green

Flower Size

30 cm

Flower Color

White Yellow

Images of Emerald tree

Quickly Identify Emerald tree

Recognizable by its glossy, bipinnate leaves with numerous small leaflets. It has an overall bushy appearance and when housed indoors, it typically maintains a compact size. The leaves are vibrant green and the plant has a woody stem.

Scientific Classification of Emerald tree

Phylum

Vascular plants

Class

Dicotyledons

Order

Lamiales

Family

Bignonia

Genus

China doll

Species

Emerald tree

Planting and Growing of Emerald tree

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Partial sun

Sunshine Duration

6-10 hours

Ideal Temperature

65-75℉

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

Plastic, Ceramic

How to Water Emerald tree?

For Radermachera sinica, water until the topsoil feels evenly moist but not waterlogged. Use approximately 250 ml, ensuring drainage holes are clear to prevent standing water. The roots should not sit in water but need consistent moisture.

What are the symptoms of an underwatered Emerald tree? ›

What should I do if my Emerald tree is not getting enough water? ›

What are the symptoms of an overwatered Emerald tree? ›

How to save an overwatered Emerald tree? ›

More About Watering Techniques→

What Are the Sunlight Requirements for Emerald tree?

Sunlight Requirements: Partial sun, Full shade

Duration of light: 2-4 hours of sunlight

Partial sun and full shade offer the best conditions. Ideal light promotes vigorous growth, preserving the plant's lush, green foliage. Balanced light maintains a healthy growth pattern, enhancing its decorative appeal.

What type of light do Radermachera sinica plants prefer? ›

How can you achieve optimal lighting for Radermachera sinica? ›

What are the benefits of Radermachera sinica receiving ideal light conditions? ›

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What Is the Ideal Temperature Range for Emerald tree?

Ideal Temperature: 65 ~ 75℉

Radermachera sinica thrives best within the ideal temperature range of 65°F to 75°F. This range mimics its natural subtropical habitat, allowing it to maintain optimal metabolic processes and vibrant foliage. Staying within this range ensures a healthy growth environment.

What Soil is Best for Emerald tree?

Soil type: Sandy loam, Loam

Soil PH: 6.5 ~ 7.5

Radermachera sinica thrives in well-draining soil, which helps prevent root rot by allowing excess water to quickly escape. Proper drainage ensures that the roots receive adequate oxygen, promoting healthy growth. This plant requires soil rich in nutrients to support its growth and vibrant foliage. Fertile soil provides essential minerals needed for photosynthesis and overall vitality, making sure the plant remains robust and lush. Radermachera sinica prefers soil that can retain some moisture without becoming waterlogged. The right balance of moisture retention supports consistent hydration, crucial for maintaining its glossy, green leaves. More About Soil→

How to Fertilize Emerald tree?

Fertilizer type: Balanced

For Radermachera sinica, fertilize with a balanced liquid fertilizer at half strength. Use approximately 1 tablespoon per gallon of water. When using slow-release granules, apply according to the package instructions but generally, 1 to 2 tablespoons per plant will suffice. More About Fertilizing Techniques→

How to Prune Emerald tree?

Pruning Time: Spring, Summer, Autumn, Winter

Start by sterilizing your pruning shears to prevent disease transmission. Focus on removing dead or yellowing leaves, which helps keep the plant healthy. Cut back any overly long branches to maintain the tree's desired shape, typically just above a leaf node to encourage new growth. Always make clean cuts to minimize stress and ensure smoother healing for the plant. Decide on the desired shape of your plant. You can prune to encourage a fuller, bushy appearance or to shape it more like a small tree by removing lower branches. Regular trimming of tips can promote denser foliage, which enhances the plant's lush appearance. Address any leggy or disproportionately long branches, adjusting and balancing the overall look. More About Pruning Techniques→

How to Propagate Emerald tree plant?

Propagate Time: Spring, Early summer

Choose a healthy parent plant with strong, disease-free stems. This will improve the chances of successful propagation. Avoid plants with signs of stress or pest infestation.

Using pruning shears, cut a stem section about 6-8 inches long, just below a node. Remove any leaves from the lower half to reduce moisture loss and focus the plant's energy on root development.

Dip the cut end of the stem in rooting hormone and plant it in a pot filled with a sterile seed-starting mix or perlite. Water lightly and cover it with a plastic bag to maintain humidity.

More About Propagating Techniques→

How to Repot Emerald tree plant?

Repotting frequency: Every 2-3 years

You should consider repotting Radermachera sinica when you notice roots emerging from the drainage holes, the growth has slowed, or the plant looks top-heavy and unstable. These signs indicate that the plant has outgrown its current pot and needs more space.

Select a pot that is one size larger than the current one, with drainage holes to prevent waterlogging. A pot that's slightly bigger prevents rapid drying out and offers more stability, aiding in healthy root growth and better support for the plant.

Opt for a well-draining potting mix rich in organics, with a bit of sand or perlite for aeration and drainage. This prevents root rot and compaction, allowing roots to breathe and absorb nutrients efficiently for optimal health and growth.

More About Repotting Techniques→