Aristolochia macrophylla
Dutchman's pipe
A vigorous deciduous climber with broad, heart-shaped leaves to 30cm in length, and solitary greenish flowers 3-4cm in length, mottled with yellow and purple, borne in the leaf axils
Synonyms
Aristolochia siphoAristolochia durior
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Size
Ultimate height
8–12 metresTime to ultimate height
5–10 yearsUltimate spread
2.5–4 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple Green Yellow | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Aristolochiaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Climbing
- Potentially harmful
- TOXIC if eaten. Wear gloves and other protective equipment when handling
- Genus
Aristolochia can be shrubs or herbaceous perennials, many climbing, usually with heart-shaped or ovate leaves. Distinctive flowers have an S-shaped calyx tube and no petals, and are may be white, yellow, brown or maroon, often mottled
- Name status
Correct
- Plant range
- SE Canada to E USA
How to grow
Cultivation
This climber thrives in a sunny, sheltered position with a soil that is fertile and well-drained
Propagation
Propagate by seed or softwood cuttings
Suggested planting locations and garden types
- City and courtyard gardens
- Wall side borders
Pruning
Pruning group 11 or pruning group 12; prune after flowering
Pests
Generally pest-free
Diseases
May be susceptible to honey fungus in gardens where it is present but insufficient data to determine degree of susceptibility
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