Aristolochia macrophylla
Pfeifenwinde
Common names: Pfeifenblume
Photo: Sten Porse · CC BY-SA 3.0 · Source
This description was machine-translated.
Description
The pipevine (*Aristolochia macrophylla*) is a vigorous, summer‑green climber with large, heart‑shaped leaves that quickly form a dense, screen‑like barrier on pergolas and trellises. From May to June, the distinctive pipe‑shaped, yellow‑brown patterned flowers appear, are insect‑pollinated, and usually remain hidden among the foliage. All parts of the plant contain aristolochic acid and are toxic; contact and especially ingestion should be avoided, particularly by children and pets. As a North American native form, it is suitable for naturalistic hedges and shaded façade greenings.
Care instructions
Plant the pipevine in a semi‑shaded to sunny spot with a sturdy trellis for support. Water abundantly after planting in spring (late April to mid‑May, weeks 17–20) to establish growth. The soil should be fresh to moist, humus‑rich, and nutrient‑rich; later it tolerates occasional dryness. In early spring, prune back overly long or leggy shoots before new growth to keep the plant dense. Wear gloves when pruning, as the sap can irritate skin. A mulch layer in winter protects young plants at frosty sites.
Soil & site
Soil pH
Soil type
moist, humus-rich, well-drained, nutrient-rich
Feeding
Medium feeder
Pruning
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