Oriental bittersweet (Celastrus orbiculatus)

Also known as: Staff vine, Round-leaved bittersweet

Kudzu (Pueraria montana var. lobata) is a highly aggressive vine that has been classified as an invasive species in numerous regions. This rapid-growing plant climbs over trees and structures, often wrapping tightly around them. Kudzu can completely engulf and strangle mature trees, leading to their eventual demise.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Oriental bittersweet

Lifespan

Perennial

Plant Type

Vine

Plant Height

12 m

Spread

1.5 m to 3 m

Leaf Color

Green Yellow

Flower Size

2 mm to 2.5 mm

Flower Color

Green Yellow

Images of Oriental bittersweet

Quickly Identify Oriental bittersweet

Distinctive red capsules with yellow casings add vibrant color.

Simple, alternate leaves with glossy surfaces and rounded toothed margins.

Twining stem pattern, often twisting conspicuously, envelops structures.

Clusters of small dioecious flowers with 5 green petals, lacking scent.

Fruit capsules mature from green to yellow, revealing scarlet fleshy interior.

Scientific Classification of Oriental bittersweet

Phylum

Vascular plants

Class

Dicotyledons

Order

Spindle tree order

Family

Bittersweet

Genus

Staff vines

Species

Oriental bittersweet

Planting and Growing of Oriental bittersweet

Care Difficulty

Easy

Watering Schedule

Every 2 days

Sunlight Requirements

Full sun

Sunshine Duration

6-10 hours

Ideal Temperature

59-77℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6-8

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 Oriental bittersweet?

Celastrus orbiculatus, commonly known as Oriental bittersweet, requires a balanced watering strategy. Aim to keep the soil moderately moist without waterlogging. Typically, 250 milliliters per session is a good amount, allowing the soil to absorb moisture thoroughly without becoming overly saturated.

What are the symptoms of an underwatered Oriental bittersweet? ›

What should I do if my Oriental bittersweet is not getting enough water? ›

What are the symptoms of an overwatered Oriental bittersweet? ›

How to save an overwatered Oriental bittersweet? ›

What Are the Sunlight Requirements for Oriental bittersweet?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 4-8 hours sunlight

Partial sun or full sun is ideal for this plant, supporting its need for regular sunlight. Such conditions enable optimal photosynthesis, encouraging strong growth and vibrant foliage.

Optimal Sunlight Duration ›

Sunlight Placement Solutions ›

Benefits of Ideal Lighting ›

What Is the Ideal Temperature Range for Oriental bittersweet?

Ideal Temperature: 59 ~ 77℉

Celastrus orbiculatus thrives best in temperatures ranging between 59°F and 77°F. Within this temperature range, the plant can effectively grow and maintain a healthy foliage. This range simulates the plant's natural environment during mild seasons, supporting vigorous photosynthesis and nutrient uptake.

What Soil is Best for Oriental bittersweet?

Soil type: Loam, Sandy loam, Clay soil

Soil PH: 6 ~ 8

Celastrus orbiculatus thrives in well-draining soil as it prevents overwatering and root rot, promoting healthy root systems for vigorous growth and reduced risk of fungal diseases. The plant benefits from nutrient-rich soil, which provides essential minerals and nutrients necessary for strong foliage and berry production, supporting its vigorous climbing nature. Ensuring adequate soil moisture retention is crucial for Celastrus orbiculatus, as it ensures a consistent water supply, critical for lush growth, especially during dry spells.

How to Fertilize Oriental bittersweet?

Fertilizer type: Balanced

For Celastrus orbiculatus, the fertilization process requires careful balance. Use a balanced liquid fertilizer diluted to half the recommended strength to avoid excessive nutrient concentration. Apply around one to two gallons for fully grown plants or a proportional amount relative to the plant's size and container. Slow-release granules should be distributed at a rate recommended by the product, usually a tablespoon per square foot around the plant base.

How to Prune Oriental bittersweet?

Pruning Time: Spring, Summer, Autumn, Winter

Begin by understanding the growth pattern of Celastrus orbiculatus. This vine can grow aggressively, so identify main stems and any unwanted or excessive branches. Always use clean and sharp pruning shears to avoid transmitting disease. Sterilize your tools before and after pruning to keep the plant healthy. Start pruning by removing any dead, damaged, or diseased branches. This will improve the plant's overall health and encourage new growth. Trim back vigorously growing vines to control size. Focus on unwanted growth and direct the plant where you want it to go by cutting above a healthy bud. To prevent mildew and disease, ensure your pruning opens up the plant structure, allowing better air and light penetration through the vine.

How to Propagate Oriental bittersweet plant?

Propagate Time: Spring, Early summer

Collect seeds from ripe fruit in the autumn and clean them thoroughly to remove any pulp or residue before storing them in a cool, dry place for stratification over winter.

Take cuttings in early summer, using clean pruning shears. Cut below a node and remove the lower leaves to prepare them for planting in a soil mix.

In spring, select a low branch, gently bend it to the ground, and cover part of it with soil. Secure in place and wait several months for roots to develop.

How to Repot Oriental bittersweet plant?

Repotting frequency: Every 2-3 years

Celastrus orbiculatus needs repotting when its roots start circling around the pot bottom or protrude from drainage holes, indicating root-bound conditions. Additionally, if growth slows or water drains too quickly, it's time for a new home.

Select a pot that is 1-2 inches larger in diameter than the current one. Ensure it has drainage holes to prevent waterlogging, which can lead to root rot. Opting for porous materials like terracotta aids in better aeration and moisture regulation.

A well-draining loamy soil with added organic matter is ideal for Celastrus orbiculatus. This soil mix ensures proper root aeration while retaining just enough moisture for healthy growth. Avoid overly compacted soils that hinder root expansion.

Toxicity of Oriental bittersweet

Is Oriental bittersweet toxic to cat?

Oriental bittersweet is a hazardous plant species that represents a considerable threat to cats. If cats inadvertently ingest any portion of oriental bittersweet, they face the risk of toxicity because all sections of the plant are poisonous. Affected cats might show signs of discomfort or illness. Therefore, pet owners must remain vigilant and ensure their cats do not have access to oriental bittersweet. In the event that a cat is believed to have consumed this plant, it is crucial to seek immediate veterinary assistance. Quick intervention is vital for the health and well-being of the animal.

Is Oriental bittersweet toxic to dog?

Oriental bittersweet is a harmful plant that presents a considerable danger to dogs if they ingest it. Dogs may inadvertently consume various parts of this plant, resulting in poisoning. The whole plant, encompassing its leaves, stems, flowers, and berries, is deemed toxic and should be kept away from pets. Signs of poisoning in dogs can include vomiting, diarrhea, abdominal distress, weakness, and potentially more serious responses depending on the quantity consumed. If you believe your dog has ingested oriental bittersweet, it is crucial to seek urgent veterinary assistance to guarantee the best possible outcome for your furry companion.

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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