Wormwood (Artemisia absinthium)

Wormwood

Artemisia absinthium

Its silvery foliage holds bitter resilience, a herb with sharp scent and historic ties. Perennial aromatic herb; common names: wormwood, absinthe wormwood.

Full sun
1/week
Beginner
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Plant Needs

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Sunlight Full sun to partial sun; tolerates dry, poor soil conditions and hot, arid climates
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Watering Allow soil to dry completely between waterings; highly drought-tolerant, avoid waterlogging
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Temperature Hardy to -20°C; withstands hot, dry summer conditions and mild frost
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Characteristics

  • Leaf: Silvery-gray, finely divided, aromatic foliage with soft pubescence
  • Flower: Small, yellow-green, clustered in terminal panicles
  • Stem: Woody at base, branching upright stems covered in silvery 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

Water deeply once weekly during extended dry spells

Fertilization

Diluted balanced feed once every 6 weeks. Use low-nitrogen feed to avoid excessive foliage growth that reduces aromatic content

Banana peel compost tea:Use fully composted banana peels; dilute 1:20 for root drench to support foliage health without over-fertilizing
Pruning
  • Cut back spent flower heads to encourage bushier, more compact growth
  • Trim dead, woody stems in early spring to promote new, vigorous foliage
  • Thin overcrowded branches to improve airflow and reduce fungal disease risk
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Pet & Human Toxicity & Emergency Guide

⚠️ Toxic to Pets (Cats & Dogs)

Toxicity Warning: Veterinary toxicology registers Wormwood (Artemisia absinthium) 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.

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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.

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Troubleshooting & Common Plant Problems

Quick diagnostic guide for common care issues affecting Wormwood (Artemisia absinthium):

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 Wormwood?

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 Wormwood?

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

Is Wormwood toxic to pets?

ASPCA: Toxic; ingestion may cause vomiting, diarrhea, depression, and seizures in severe cases

When should I repot my Wormwood?

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 absinthe production; associated with European folklore and traditional medicinal practices

Usage: Ornamental silvery foliage for garden borders; limited traditional medicinal use (internal consumption not recommended due to toxicity)

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