Water
Water regularly, especially during dry periods, to keep the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings.
Reduce watering in fall and winter, allowing the soil to become drier.
Also known as Common Dutchman's Pipe · Pipevine · Woolly Dutchman's-Pipe
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Woolly Dutchman's pipe (Aristolochia tomentosa) is a vigorous twining vine with fuzzy foliage, large, unique, pipe-shaped flowers, and attractive seed pods.
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade to Full Sun
75% intensity
Prefers full sun but tolerates partial shade. Protect from intense afternoon sun in very hot climates.
Moderate
50% intensity
Keep soil consistently moist but not soggy. Allow top inch to dry slightly between waterings. Reduce in winter.
Well-draining, fertile loam.
50% intensity
Moderate to High
75% intensity
Thrives in temperatures between 18-29°C during the growing season. Can tolerate cooler temperatures in winter dormancy.
Moderate
50% intensity
Feed with a balanced liquid fertilizer diluted to half strength during spring and summer. Do not fertilize in fall and winter.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
Toxic if ingested.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water regularly, especially during dry periods, to keep the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings.
Reduce watering in fall and winter, allowing the soil to become drier.
Prune in late winter or early spring before new growth begins. Remove any dead, damaged, or crossing branches. Pruning can also be used to control size and shape, and to encourage bushier growth.
Remove spent flowers to prevent unwanted seed formation.
Propagate from semi-hardwood cuttings taken in summer or hardwood cuttings taken in late fall or winter. Cuttings should be treated with rooting hormone and planted in a well-draining potting mix.
Rooting can take several weeks to months.
Repot young plants annually in spring. Mature plants can be repotted every 2-3 years or when they become root-bound. Use a well-draining potting mix and a pot that is slightly larger than the current one.
Water thoroughly after repotting.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Woolly Dutchman's Pipe (Aristolochia tomentosa)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Piperales |
| Family | Aristolochiaceae |
| Genus | Aristolochia |
| Species | Aristolochia tomentosa |
Similar in genus Aristolochia
Answers based on plant encyclopedia data
