Clove Tree (Syzygium aromaticum)

Clove Tree

Syzygium aromaticum

Its buds hold warm, spicy fragrance that defines global cuisine. Evergreen tropical tree; common name: clove.

Full sun
2–3/week
Moderate
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Plant Needs

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Sunlight Requires bright direct sunlight for optimal bud production; protect from harsh midday sun in extreme heat with shade cloth
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Watering Keep soil consistently moist but not waterlogged; allow the top 1–2 cm of soil to dry slightly between waterings to avoid root rot
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Temperature Thrives in warm tropical temperatures; cannot tolerate frost or temperatures below 10°C; maintain 20–28°C for active growth
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Characteristics

  • Leaf: Elliptical, glossy dark green leaves with aromatic oil glands that release spicy scent when crushed
  • Flower: Reddish-pink unopened buds are the commercial clove; mature flowers are pale yellow, clustered at branch tips
  • Stem: Smooth, grayish-brown bark with peeling flakes on mature, established trees
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Care Guide

Watering

Keep soil evenly moist; mist foliage regularly to maintain high humidity

Fertilization

Apply balanced organic fertilizer every 4 weeks to support leaf growth. Avoid over-fertilization, as excess nitrogen can reduce flower bud production

Banana peel compost tea:Fully compost banana peels before use; dilute the tea 1:20 with water for root drenching to avoid odor and pest infestations
Pruning
  • Prune dead, diseased, or crossing branches in early spring to improve airflow and light penetration
  • Thin dense inner foliage to encourage even bud growth across the canopy
  • Trim back overgrown shoots to maintain desired shape; avoid heavy pruning during flowering periods
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed toxic; contains eugenol which may cause liver damage, gastrointestinal distress, and central nervous system depression

Humans: Ingestion of large quantities may cause gastrointestinal upset; concentrated eugenol oil can irritate skin and mucous membranes

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Garden Uses & Culture

Culture: Associated with traditional medicine and the historic European spice trade; symbolizes warmth and hospitality in global culinary traditions

Usage: Dried buds used as a culinary spice; essential oil for aromatherapy and dental care; traditional medicinal uses for pain relief and digestion