Is it safe to plant in my garden?

No, it is highly invasive and will quickly overwhelm other plants and structures.

How do I get rid of it?

Consistent mowing, grazing, or targeted herbicide application is required to exhaust the root system.

Plant guide

Kudzu.

Pueraria montana

Pronounced pyoo-er-AIR-ee-uh mon-TAN-uh

Also known as Kudzu, kudzu vine, Japanese Arrowroot

Kudzu is a vigorous climbing vine known for its rapid growth and ability to cover entire landscapes. It produces fragrant purple flowers and large, trifoliate leaves. This plant is highly invasive in many regions and is generally not recommended for home cultivation.

Another photo of Kudzu — Photo by 岸本年郎 (CC BY) via gbif

At a glance

Care level: Easy
Plant type: Perennial vine
Light: Full sun
Indoor light: Direct sun
Water: Every 7 to 14 days
Mature size: 30 meters
Growth rate: Fast
Hardiness: USDA 5 to 10
Bloom time: Late summer to early autumn

Care

This plant thrives in full sun and requires minimal intervention to grow aggressively. Keep an eye out for its tendency to smother other vegetation and structures. It is best to avoid planting it entirely due to its invasive nature.

Watering: Once established, it is highly drought tolerant.
Feeding: It rarely needs fertilizer as it fixes its own nitrogen.
Pruning: Constant pruning is required to keep this plant from taking over.
Repotting: It is not recommended to keep this plant in a container.
Soil: Well-draining, adaptable to most soils
Soil pH: 5.0 to 7.0
Temperature: -20 to 40°C
Humidity: 40 to 80%
Drought tolerance: High
Lifespan: Perennial, can live for many decades.
Fragrance: Strong
Deer and rabbits: High

Safety

People: The plant is not considered toxic, but its aggressive growth makes it a nuisance in most garden settings.
Pets: Kudzu is generally considered non-toxic to cats and dogs.
Children: The long, trailing vines pose a potential entanglement risk for small children playing near dense thickets.
Contact allergens: The fuzzy hairs on the stems and leaves can cause mild skin irritation in sensitive individuals.
Airborne allergens: The pollen may cause seasonal allergy symptoms in some people.
Edibility: While the starchy roots and flowers are edible when prepared correctly, the plant is often treated with herbicides due to its invasive nature.

How to identify it

Large, alternate, trifoliate leaves
Fragrant, purple, pea-like flower clusters
Thick, woody, hairy vines
Rapidly spreading growth habit

Height: 10 to 30m
Spread: 5 to 10m
Leaves: green, deciduous
Flowers: purple, violet, 1 to 2cm
Fruit: brown, Autumn

Problems to watch for

By symptom

Plant problems by symptom

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Growing it

Propagation: seed, cuttings, division
When to plant: spring
Overwintering: The vines die back to the ground in frost, leaving the massive root crown to survive the winter.
In containers: It is not suitable for containers due to its massive root system and extreme vigor.

Seed propagation

Scarify the hard seed coat with sandpaper.
Soak seeds in warm water for 24 hours.
Plant in well draining soil in a warm location.

Do not plant this near any other species as it will inevitably smother them.

Science

Family: Fabaceae
Genus: Pueraria
Order: Fabales
Class: Magnoliopsida
Native range: Eastern Asia
Conservation: It is listed as a severe invasive species in many regions, and planting it is often discouraged or illegal.

It thrives by outcompeting native vegetation for sunlight and space, often blanketing entire trees.

Value to wildlife: nectar source
Pollinators: bees, butterflies
Uses: erosion control, forage, culinary starch

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 8/9
Temperature: 7/9
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 quickly overwhelm other plants and structures.
How do I get rid of it?: Consistent mowing, grazing, or targeted herbicide application is required to exhaust the root system.

Where the name comes from

The genus name honors the Swiss botanist Marc Michel Puerari, while the specific epithet montana refers to its mountain habitat.

Good to know

Kudzu was introduced to the United States in 1876 for ornamental use and erosion control.
The roots contain a high concentration of starch used in traditional cooking.
It is known as the vine that ate the South due to its rapid spread across the landscape.
The flowers have a pleasant grape like scent.

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.