Is it safe to plant in my garden?

No, it is highly invasive and will likely escape into nearby natural areas.

How do I get rid of it?

Cut the vines at the base and treat the stumps with a systemic herbicide.

Plant guide

Oriental bittersweet.

Celastrus orbiculatus

Pronounced seh-LAS-trus or-bik-yoo-LAY-tus

Also known as Asian Bittersweet, Asiatic Bittersweet, Japanese Bittersweet, Oriental Bittersweet, Oriental staff vine, Staff Vine, Staff-vine, Staffvine

Oriental bittersweet is a vigorous, deciduous woody vine known for its aggressive climbing habit. It produces small, greenish flowers followed by vibrant yellow and red fruit that birds love. Please be aware that this plant is considered highly invasive in many parts of North America.

At a glance

Care level: Easy
Plant type: Deciduous woody vine
Light: Full sun to partial shade
Indoor light: Bright indirect
Water: Every 7 to 14 days
Mature size: 30 to 40 feet
Growth rate: Fast
Hardiness: USDA 4 to 8
Bloom time: Late spring to early summer

Care

This plant is incredibly hardy and requires very little intervention to thrive. Watch for signs of it spreading beyond your intended area, as it can quickly overtake nearby trees and structures. Pruning is mostly needed to keep its aggressive growth in check.

Watering: Water regularly until established, then it becomes quite drought tolerant.
Feeding: It rarely needs fertilizer, but a light application of balanced feed in spring can help if growth is stunted.
Pruning: Prune back heavily in late winter to control its size and prevent it from climbing unwanted structures.
Repotting: If kept in a container, move it to a larger pot every few years once it becomes root bound.
Soil: Well-draining, adaptable to various soil types
Soil pH: 6.0 to 7.5
Temperature: -30 to 35°C
Humidity: 40 to 70%
Drought tolerance: High
Lifespan: Perennial, can live for many decades.
Deer and rabbits: Moderate

Signs it needs repotting

Roots growing out of drainage holes.
Stunted growth despite regular care.

Safety

People: All parts of the plant, especially the berries, are toxic if ingested.
Pets: The berries and foliage can be toxic to cats and dogs if ingested.
Children: The bright berries are attractive to children but pose a significant poisoning risk if swallowed.
Contact allergens: The sap may cause mild skin irritation in sensitive individuals.
Airborne allergens: The pollen can trigger mild allergic reactions in some people.
Edibility: The berries are considered toxic to humans and should not be consumed.

How to identify it

Alternate, rounded, glossy green leaves
Small, greenish, inconspicuous flowers
Yellow capsules splitting to reveal red seeds
Twining woody stems that strangle trees

Height: 6 to 12m
Spread: 3 to 6m
Leaves: green, yellow, deciduous
Flowers: green, white, 0.5 to 1cm
Fruit: yellow, red, Autumn

Problems to watch for

AphidsCommon
Leaf SpotCommon
Mechanical DamageCommon
Powdery MildewCommon
CankerUncommon
Crown GallUncommon
Scale InsectsUncommon
Root RotRare

By symptom

Plant problems by symptom

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Growing it

Propagation: seed, cuttings, layering
When to plant: spring, autumn
Overwintering: It is fully hardy and requires no special protection during the winter months.
In containers: It is not recommended for containers due to its aggressive growth habit and invasive nature.

Seed

1. Collect ripe berries in autumn.
2. Clean seeds from the pulp.
3. Cold stratify seeds for 3 months.
4. Sow in well draining soil.

Avoid planting this species entirely to protect local ecosystems.

Keep away from

American Bittersweet · It hybridizes with the native species, threatening its genetic purity.

Similar species

American Bittersweet · It is the native counterpart that is much less aggressive.

Science

Family: Celastraceae
Genus: Celastrus
Order: Celastrales
Class: Magnoliopsida
Native range: Eastern Asia
Conservation: It is listed as a noxious weed in many states and should not be planted in the wild.

It thrives by climbing over shrubs and trees to reach sunlight, eventually shading them out.

Value to wildlife: provides winter food for birds, dense cover for nesting
Pollinators: bees, butterflies
Uses: ornamental vine, wreath making, erosion control

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 7/9
Temperature: 5/9
Moisture: 5/9
Nutrients: 5/9

Taxonomy resolved against GBIF.

Questions people ask

Is it safe to plant in my garden?: No, it is highly invasive and will likely escape into nearby natural areas.
How do I get rid of it?: Cut the vines at the base and treat the stumps with a systemic herbicide.

Where the name comes from

The genus name Celastrus comes from the Greek word for an evergreen tree, while orbiculatus refers to the round shape of the leaves.

Good to know

It is often called Oriental bittersweet to distinguish it from the native American species.
The vines can grow up to 12 meters long.
It was introduced to North America in the 1860s as an ornamental plant.

Also in

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.