Devil's Trumpet (Datura metel)

Devil's Trumpet

Datura metel

Its large trumpets bloom under moonlight, a haunting beauty with hidden danger. Toxic ornamental flowering shrub; common name: Devil's Trumpet.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Requires full sun to partial shade; tolerates intense afternoon sun in arid regions but benefits from light shade in humid climates
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Watering Water deeply when the top 5 cm of soil is completely dry; avoid overwatering to prevent root rot
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Temperature Thrives in warm, tropical to subtropical temperatures; cannot tolerate frost; move indoors if temperatures drop below 10°C
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Characteristics

  • Leaf: Large, ovate to heart-shaped leaves with serrated margins; soft, velvety green texture
  • Flower: Fragrant, trumpet-shaped blooms (15–20 cm long) in white, pink, or purple; open nocturnally and wilt by midday
  • Stem: Erect, branching green stems covered in fine, fuzzy hairs
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Horticulturist's Insider Field Notes (No AI Fluff)

The Golden 'Finger Test' Rule

Never water on a strict calendar. Stick your index finger 2 inches into the soil. If it feels cool and damp, wait 2–3 days. If bone dry, water thoroughly until it drains from the bottom holes.

Empty the Saucer After 20 Minutes

The #1 houseplant killer is water sitting in the catch tray. Stagnant runoff water starves roots of oxygen and causes root rot.

Turn the Pot Every 2 Weeks

Houseplants naturally lean toward the nearest window light. Give the pot a quarter-turn biweekly to maintain balanced, symmetrical architecture.

Wipe the Dust Away

Dust on leaves acts like a heavy sunshade. Gently wipe broad foliage with a damp cloth monthly to maximize photosynthesis and air purification.

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Care Guide

Watering

Maintain evenly moist soil during active growth; increase watering frequency during prolonged heatwaves

Fertilization

Apply diluted balanced liquid fertilizer every 2 weeks. Discontinue fertilization in autumn to prepare the plant for dormancy

Eggshell powder topdress:Grind dried, clean eggshells into a fine powder; sprinkle 1 teaspoon per pot around the base of the plant to boost soil calcium levels and prevent blossom end rot
Pruning
  • Pinch back young stem tips to encourage bushy, compact growth
  • Remove spent flowers promptly to promote continuous blooming throughout the growing season
  • Cut back leggy or overgrown stems by one-third in mid-summer to maintain plant shape
  • Dispose of all pruned material carefully, as all plant parts remain toxic
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Pet & Human Toxicity & Emergency Guide

⚠️ Toxic to Pets (Cats & Dogs)

Toxicity Warning: Veterinary toxicology registers Devil's Trumpet (Datura metel) as possessing biochemical compounds (such as insoluble oxalates, alkaloids, or saponins) that pose ingestion hazards to felines and canines.

Feline Ingestion Risks (Cats)

Oral pain, hypersalivation (excessive drooling), pawing at mouth, swelling of tongue or lips, vocalization, and vomiting.

Canine Ingestion Risks (Dogs)

Oral mucosal irritation, gagging, retching, lack of appetite, lethargy, diarrhea, and difficulty swallowing.

Immediate Emergency First-Aid

Do NOT induce vomiting without veterinary instructions! Carefully remove remaining plant pieces, gently rinse mouth with cool water, and monitor breathing.

🚨 Pet Ingestion Emergency? Instant Plant & Toxicity Scan

Chewed leaf or stem? Open PlantFun App to scan the plant, immediately verify the botanical species, and view ASPCA toxicity severity ratings & vet first-aid advice.

Emergency Plant Scan
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Troubleshooting & Common Plant Problems

Quick diagnostic guide for common care issues affecting Devil's Trumpet (Datura metel):

Yellowing Leaves

Most commonly caused by overwatering or poor drainage. Ensure topsoil dries out between waterings and check for root ventilation.

Brown or Crispy Leaf Tips

Low ambient humidity, hard tap water minerals, or direct midday sunburn. Increase humidity and use filtered water.

Drooping or Wilting Foliage

Indicates dehydration or root damage from prolonged waterlogging. Inspect soil moisture and root firmness.

Common Pests (Spider Mites, Aphids)

Dry indoor air encourages pests. Wipe leaves with a damp cloth and treat with insecticidal soap or neem oil.

🌿 Instant AI Plant Health Check

Take a photo of any leaf on PlantFun App to get instant diagnosis of diseases, pests, and custom care recovery steps.

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Propagation & Repotting Guide

  • Taking Cuttings: During active spring or summer growth, take a healthy 4–6 inch cutting just below a node using clean shears.
  • Rooting Medium: Place cuttings in fresh water or moist perlite mix in bright, indirect light; refresh water weekly.
  • Potting Up: Transplant into well-draining potting mix once roots reach 2 inches in length (typically 3–5 weeks).
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Seasonal Care Calendar

  • Spring & Summer (Active Growth): Water thoroughly as topsoil dries; apply diluted balanced fertilizer monthly; encourage steady growth.
  • Autumn (Transition): Gradually reduce watering frequency as daylight hours shorten; discontinue fertilization.
  • Winter (Dormancy): Water sparingly only when soil is mostly dry; protect from cold window drafts; keep in warm room.
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Frequently Asked Questions

How often should I water my Devil's Trumpet?

Water thoroughly when the top 1–2 inches of soil feel dry. In active growth (spring/summer), water every 1–2 weeks; reduce significantly in winter.

Where is the best indoor location for Devil's Trumpet?

Position in bright, filtered indirect light (e.g., near an east or south-facing window with sheer curtains). Avoid harsh direct midday sun.

Is Devil's Trumpet toxic to pets?

ASPCA confirmed toxic; ingestion causes vomiting, diarrhea, lethargy, hallucinations, and potentially fatal neurological distress

When should I repot my Devil's Trumpet?

Repot every 1–2 years in spring when roots outgrow the drainage holes or the soil depletes nutrients.

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Garden Uses & Culture

Culture: Historically used in traditional South Asian spiritual rituals due to its hallucinogenic properties; now widely grown as an ornamental with strict safety warnings

Usage: Ornamental flowering plant for garden borders or large indoor containers; never planted in areas accessible to children or pets

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