Does it need full sun?

It prefers partial shade but will tolerate full sun if the soil stays moist.

How fast does it grow?

It is a fast growing vine once established.

Plant guide

Dutchman's pipe.

Isotrema macrophyllum

Pronounced eye-so-TREE-muh mak-ro-FILL-um

Also known as dutchman's-pipe, large-leaved dutchman's-pipe, pipevine

pipevine — Photo by Bruce Slater (CC BY) via iNaturalist

Dutchman's pipe is a vigorous, woody vine known for its large, heart shaped leaves that create a dense screen. It produces unique, pipe shaped flowers that hide beneath the foliage in late spring. This plant is a fantastic choice for covering fences or trellises in a shady spot.

Another photo of Dutchman's pipe — Photo by Oleksandr Shynder (CC BY) via iNaturalist

At a glance

Care level: Easy
Plant type: Deciduous woody vine
Light: Partial shade to full sun
Indoor light: Bright indirect
Water: Every 5 to 10 days
Mature size: 20 to 30 feet
Growth rate: Fast
Hardiness: USDA 4 to 8
Bloom time: Late spring to early summer

Care

Provide a sturdy support structure because this vine gets quite heavy as it matures. Keep an eye out for yellowing leaves, which often signal that the soil is staying too wet. Prune it back in late winter to keep its size in check.

Watering: Keep the soil consistently moist but avoid letting it sit in water.
Feeding: Apply a balanced fertilizer during the active growing season.
Pruning: Trim back in late winter to manage growth and encourage fuller foliage.
Repotting: Repot only when the plant becomes root bound or needs a larger container.
Soil: Rich, moist, well draining soil
Soil pH: 6.0 to 7.5
Temperature: -30 to 35°C
Humidity: 40 to 70%

Safety

People: The plant contains aristolochic acid which is known to be toxic to the kidneys.
Pets: This plant is considered toxic to cats and dogs if ingested.
Children: Keep this plant away from children as ingestion of any part can cause severe illness.
Contact allergens: Handling the foliage may cause mild skin irritation in sensitive individuals.
Airborne allergens: There are no notable airborne allergen risks associated with this vine.
Edibility: All parts of this plant are considered toxic if ingested.

How to identify it

Large heart shaped leaves
Pipe shaped brownish flowers
Woody climbing stems
Dense overlapping foliage

Height: 6 to 9m
Spread: 3 to 6m
Leaves: green, deciduous
Flowers: brown, yellow, purple, 3 to 5cm
Fruit: brown, Autumn

Problems to watch for

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Growing it

Propagation: seed, cuttings, layering
When to plant: Spring, Autumn

Plant this vine near a strong trellis or fence as it can become quite heavy over time.

Grows well with

Wild Ginger · They share similar woodland soil requirements.
Ferns · Ferns provide a nice textural contrast beneath the large leaves.

Similar species

Virginia Creeper · Both are vigorous native vines used for covering structures.

Science

Family: Aristolochiaceae
Genus: Isotrema
Order: Piperales
Class: Magnoliopsida
Native range: Eastern United States
Conservation: This species is not currently listed as endangered or protected.

It thrives in rich, moist woods and along stream banks where it can climb into the canopy.

Value to wildlife: larval host plant
Pollinators: beetles
Uses: ornamental vine, privacy screen, shade cover

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 1/9
Soil reaction: 6/9
Light: 5/9
Temperature: 5/9
Moisture: 6/9
Nutrients: 6/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need full sun?: It prefers partial shade but will tolerate full sun if the soil stays moist.
How fast does it grow?: It is a fast growing vine once established.

Where the name comes from

The name Isotrema comes from Greek for equal hole, referring to the flower shape, while macrophyllum means large leaved.

Good to know

The leaves can grow up to 30 centimeters wide.
It is a vigorous climber that needs sturdy support.
The flowers are often hidden beneath the large leaves.

Also in

Plants toxic to cats and dogs

Keep your dutchman's pipe growing

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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.