Chinese box (Buxus sinica)

Also known as: Chinese boxwood, Littleleaf Box

The Chinese box (Buxus sinica) is indigenous to China, as its name suggests. This plant is popularly used as an ornamental shrub due to its dense foliage, making it ideal for hedges and screens in gardens. The species name *sinica* is derived from the Latin term for China. Historically, the term "box" in its name likely refers to the use of its fine-grained wood, which was traditionally crafted into various wooden items, including boxes.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Chinese box

Lifespan

Perennial

Plant Type

Tree, Shrub

Plant Height

1 m to 6 m

Spread

1.2 m to 6 m

Leaf Color

Green

Flower Size

Typically small, not often noticeable

Flower Color

Yellow Green Gold

Images of Chinese box

Quickly Identify Chinese box

Square stems distinguish chinese box from other plants, providing a tactile identifier.

Oppositely arranged glossy leaves with vibrant upper surfaces are distinctive.

Insignificant greenish-yellow flowers, 1/8 inch in diameter, bloom in spring.

Fine-textured growth habit with compact form reaching 2-3 feet in height.

Male flowers clustered separately from solitary female flowers on chinese box.

Scientific Classification of Chinese box

Phylum

Vascular plants

Class

Dicotyledons

Order

Buxales

Family

Boxwood

Genus

Boxes

Species

Chinese box

Planting and Growing of Chinese box

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Partial sun

Sunshine Duration

4-8 hours

Ideal Temperature

60-75℉

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 Chinese box?

Buxus sinica, or the Chinese Boxwood, requires a balanced watering approach. Ensure that the soil is thoroughly soaked during each watering session, delivering approximately 500 ml of water. This amount helps maintain adequate moisture without waterlogging, remembering that well-draining soil is crucial for this plant.

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What Are the Sunlight Requirements for Chinese box?

Sunlight Requirements: Partial sun

Duration of light: 4-6 hours

Buxus sinica prefers partial sun exposure, which optimizes its growth and foliage health, improving its flair and disease resistance.

What is the ideal amount of sunlight for Buxus sinica? ›

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More About Sunlight Requirements Techniques→

What Is the Ideal Temperature Range for Chinese box?

Ideal Temperature: 60 ~ 75℉

For optimal growth, Buxus sinica thrives in a temperature range of 60°F to 75°F. This range allows the plant to maintain its metabolic processes efficiently, ensuring healthy foliage and robust growth.

What Soil is Best for Chinese box?

Soil type: Loam, Sandy loam, Clay soil

Soil PH: 6.5 ~ 7.5

Buxus sinica thrives in well-drained soil that prevents root rot, providing an ideal environment for healthy growth and robust root development. Retaining a moderate level of soil moisture is essential to prevent the plant from drying out, thereby maintaining vibrant foliage and overall plant health. Rich in organic matter, the soil should support the plant by offering essential nutrients that boost its resilience against pests and diseases.

How to Fertilize Chinese box?

Fertilizer type: Balanced

For Buxus sinica, it is important to fertilize with a balanced 10-10-10 NPK fertilizer at a rate of approximately 0.5 to 1 pound per 100 square feet. This amount ensures the plant receives essential nutrients without overwhelming its roots, supporting healthy foliage and sustained growth.

How to Prune Chinese box?

Pruning Time: Spring, Summer, Autumn, Winter

Start by examining your Buxus sinica for its natural shape. Trim back long or straggly branches to maintain its compact, rounded form. Focus on removing any crossing branches and always cut above a leaf node. To ensure adequate air circulation and light penetration, thin out the inner branches. This helps in reducing the risk of fungal diseases and encourages vibrant growth. Be careful not to over-thin the plant. If maintaining a formal hedge, regularly check for uniformity. Use a string line as a guide to ensure an even height and width, snipping off any outliers. This keeps the hedge looking neat and well-groomed. More About Pruning Techniques→

How to Propagate Chinese box plant?

Propagate Time: Spring, Early Spring, Late Spring

Select healthy and mature stems from the parent plant. The cuttings should be at least 4 to 6 inches long. Make your cut just below a node, which is where new roots will originate.

Remove the lower leaves from the cutting to expose several nodes. Dip the end of the cutting into rooting hormone to encourage root development. This process helps the cuttings establish roots faster and with greater ease.

Insert the prepared cuttings into a pot filled with a well-draining potting mix. Ensure that the nodes are buried in the soil. Water the cuttings and cover them with a plastic bag to retain humidity, creating a mini-greenhouse effect to promote root growth.

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How to Repot Chinese box plant?

Repotting frequency: Every 2-3 years

Buxus sinica shows signs of needing repotting when the roots become visible at the drainage holes or start spiraling around the root ball. Spring or early summer are the best times to repot, as this is when the plant is actively growing and can adjust to its new environment more readily.

Select a pot that is 1-2 inches larger in diameter than the current one. Ensure it has adequate drainage holes to prevent waterlogging, which is crucial for healthy root development. A slightly larger pot allows room for growth without overwhelming the root system.

Use a well-draining potting mix composed of a combination of perlite, peat moss, and a touch of sand. This mix emulates the natural growing conditions of Buxus sinica, allowing for excellent drainage while retaining adequate moisture and providing essential nutrients.

Toxicity of Chinese box

Is Chinese box toxic to humans?

The Chinese box plant presents a low toxicity risk to humans when ingested. All parts of the plant contain toxic compounds that can result in negative health effects upon consumption. Alkaloids are the primary agents responsible for the toxic characteristics of the Chinese box. Symptoms of poisoning may encompass gastrointestinal discomfort, including nausea, vomiting, and diarrhea. Additionally, some individuals might face dizziness or respiratory complications. It is crucial for people to prevent unintentional ingestion of any part of the Chinese box, as every component has the potential to induce these symptoms.

Is Chinese box toxic to cat?

The Chinese box plant poses a significant risk of toxicity to felines. In the event that cats unintentionally ingest any portion of this plant, they can suffer poisoning due to the toxic alkaloids found throughout the entire plant. Pet owners must remain watchful for any signs of distress or discomfort in their cats, as these may suggest potential poisoning. If there is any possibility of exposure to the Chinese box plant, prompt veterinary care is essential to safeguard the cat's health and well-being.

Is Chinese box toxic to dog?

The Chinese box presents a moderate toxicity risk for dogs. Any part of this plant is toxic, which means canines can be poisoned if they accidentally consume it. Following ingestion, dogs may show symptoms including vomiting, diarrhea, drooling, and in more serious cases, seizures or respiratory failure. The adverse effects stem from the alkaloids found in the Chinese box. If you believe your dog has ingested this plant, it is crucial to seek veterinary assistance immediately to ensure the best possible outcome for your pet.

WARNING

The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.

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