Deadly Nightshade (Atropa belladonna)

Deadly Nightshade

Atropa belladonna

Its glossy berries hide lethal poison, a silent warning in shade. Perennial herbaceous plant; common name: Deadly Nightshade.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Partial shade to full shade; avoid direct midday summer sun to prevent leaf scorching
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Watering Keep soil consistently moist but not waterlogged; avoid allowing the root ball to dry out completely
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Temperature Thrives in cool temperate conditions; tolerates light frost but cannot survive extreme heat above 30°C
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Characteristics

  • Leaf: Ovate to elliptical, glossy dark green, 10–25 cm long, arranged alternately on stems
  • Flower: Bell-shaped, dull purple to greenish-yellow, 2–3 cm long, hanging downward from leaf axils
  • Fruit: Glossy black berries, 1–2 cm in diameter, containing numerous small seeds
  • Stem: Erect, branching, green to purplish-green, slightly hairy
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Care Guide

Watering

Keep soil evenly moist; apply mulch to retain moisture and regulate soil temperature

Fertilization

Diluted balanced liquid fertilizer once every 4 weeks. Avoid over-fertilization to prevent excessive foliage growth at the expense of flower production

Banana peel compost tea:Use fully composted banana peels; dilute 1:20 with water for root drenching; avoid raw peels to prevent pest infestations and odor
Pruning
  • Remove dead or damaged stems in early spring to promote healthy new growth
  • Thin overcrowded branches to improve airflow and reduce the risk of fungal infections
  • Remove all ripe berries immediately to prevent accidental ingestion by humans or pets
  • Trim back overly tall stems in late summer to maintain a compact growth habit
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed toxic; ingestion causes dilated pupils, rapid heart rate, seizures, coma, possible death

Humans: Contains tropane alkaloids (atropine, scopolamine) that cause severe neurological and cardiovascular effects; fatal in small doses

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Garden Uses & Culture

Culture: Associated with witchcraft, poison, and medicinal folklore in medieval European traditions

Usage: Historically used in regulated medicinal preparations; now primarily grown as a cautionary ornamental plant