Black Bryony (Tamus communis)

Black Bryony

Tamus communis

Its glossy leaves climb quickly, a lush but risky vine. Perennial climbing herb; common name: black bindweed.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Partial shade to dappled sunlight; avoid intense midday direct sun which can scorch foliage
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Watering Water when the top 5 cm of soil dries completely; avoid overwatering to prevent root rot
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Temperature Hardy to short-term -5°C exposure; prefers cool temperate conditions, avoid prolonged temperatures above 28°C
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Characteristics

  • Leaf: Heart-shaped, glossy dark green, alternate arrangement on twining stems
  • Flower: Small, greenish-yellow, clustered in axillary racemes
  • Fruit: Bright red toxic berries ripen in autumn
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Care Guide

Watering

Keep soil consistently moist but not waterlogged

Fertilization

Diluted balanced liquid feed every 2 weeks. Avoid over-fertilizing to prevent excessive foliage growth at the cost of flower production

Composted banana peel tea:Steep fully composted banana peels in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Trim overgrown twining stems in late winter to maintain desired shape and size
  • Remove yellowing or damaged foliage to improve airflow and reduce disease risk
  • Cut back dead vine growth after fruiting to encourage new spring growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion leads to vomiting, diarrhea, abdominal pain, and potential cardiac complications

Humans: Contains toxic alkaloids and oxalates; ingestion causes oral irritation, nausea, and systemic distress; berries are highly toxic

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Garden Uses & Culture

Culture: N/A

Usage: N/A