Birthwort (Aristolochia clematitis)

Birthwort

Birthwort (Aristolochia clematitis) is native to the Medditerannian area of Europe; however, it has found its way across the Atlantic Ocean. Although attractive to the eye, their flowers have an incredibly foul odor and entice various insects to visit. As insects climb down the flower tube, tiny hairs trap them and prevent them from escaping, allowing the plant to slowly digest them. In spite of some cultural practices, birthwort is toxic to consume.

Scientific classification

Species

Birthwort (Aristolochia clematitis)

Pepper plants, birthworts, and allies

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Perennial

Lifespan

Herb, Vine

Plant Type

Summer

Bloom Time

61 cm to 91 cm

Plant Height

Yellow

Flower Color

Deciduous

Leaf type

5 - 35 ℃

Ideal Temperature

Images of Birthwort

Distribution of Birthwort

Distribution Map

Birthwort, with a native range spanning parts of Southeastern and Central Europe and into Western Asia, is both naturally occurring and deliberately cultivated. The plant has also been introduced to regions of Northern Europe. It thrives in various environments across these major regions, reflecting its adaptation beyond its original habitat.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Waste ground, Gardens, Orchards

Care Guide for Birthwort

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Birthwort prefers moist environments with consistent soil moisture and is moderately drought-tolerant. Weekly watering is recommended, especially during the growth season to support foliage and pipe-shaped flowers. Mulching is beneficial for moisture retention, reducing watering frequency in garden settings.

Fertilize: For birthwort, use a balanced 10-10-10 fertilizer bi-monthly during the growing season for optimal growth and flowering. Adjust application based on seasonal changes—reduce in winter and increase in spring/summer. Apply carefully to avoid root burn, blending into soil around the base.

Pruning: Birthwort is a hardy perennial vine with heart-shaped leaves and tubular flowers. Prune in early to late spring to remove dead stems and thin crowded areas, promoting air circulation and sunlight. Clean, sharp tools are essential to prevent disease and support healthy growth.

Propagation: Birthwort is propagated by sowing seeds soon after collection to ensure viability. A well-draining soil mix is essential, with seeds lightly covered and kept consistently moist. Optimal conditions promote successful germination, leading to effective propagation.

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