Aristolochia manshuriensis

RHS Plant Profile

Manchurian Dutchman's pipe

RHS

Climber Wall Shrub

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A deciduous, woody-stemmed, twining climber with large, pale green, heart-shaped leaves up to 30cm long. Flowers are borne singly or in pairs in the leaf axils in summer and are a creamy-white colour densely mottled with yellow and green

Position

Full sun, Partial shade

Soil Types

Loam, Sand

Max Height

4-8 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 1.5-2.5 metres
Max Height: 4-8 metres

Growing Conditions

Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H4

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Aristolochiaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Climbing
Potentially harmful: TOXIC if eaten. Wear gloves and other protective equipment when handling Pets (dogs): TOXIC if eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
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: Manchuria Korea

How to Grow

Cultivation

Grow in a moist, well drained, moderately fertile soil in full sun to part shade in a sheltered location; provide strong support. See staking perennials for further information

Propagation

Propagate by seed or from softwood cuttings

Suggested planting locations and garden types

Wall side borders

Pruning

Pruning group 11

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