Clove
Syzygium aromaticum
📖 About this plant
Clove (Syzygium aromaticum), known as laung in Hindi, gramboo in Tamil, and lavang in Marathi, is an evergreen tree in the Myrtaceae family (alongside guava, eucalyptus, and allspice), prized for its aromatic dried flower buds — one of the most valuable and historically significant spices in the world. Native to the Maluku Islands (the famed Spice Islands) of Indonesia, cloves were traded along the ancient maritime spice route to India, China, the Middle East, and Europe for over 2,000 years. The Chinese used cloves as early as 200 BC (courtiers chewed them to sweeten breath before addressing the emperor). The Arab traders guarded the source for centuries, and the European quest to find the Spice Islands directly drove the Age of Discovery — Portuguese, Spanish, Dutch, and British fought bloody wars to control the clove trade. Today, Indonesia is still a major producer, but Tanzania (specifically Zanzibar — the “Clove Island”) and Madagascar lead global production. In India, cloves are grown in the southern tropical regions — Kerala (Kottayam, Kollam, Thiruvananthapuram), Tamil Nadu (Kanyakumari, Tirunelveli), and Karnataka (Udupi, Dakshina Kannada). The clove tree is a handsome pyramidal evergreen, 8-15 m tall, with glossy dark green lance-shaped leaves that are intensely fragrant when crushed. The flower buds appear in clusters at the branch tips — initially crimson, then opening to small pale yellow-white flowers. The cloves we use in cooking are the unopened dried flower buds, harvested just before they open, then sun-dried until they turn the familiar dark brown nail-like shape (the English “clove” comes from the Latin clavus, meaning “nail”). Cloves are intensely aromatic and contain 15-20% essential oil, mostly eugenol — which gives cloves their characteristic warm, sweet, pungent aroma and is a powerful natural anesthetic and antiseptic. In Indian cuisine, cloves are essential to garam masala, biryani, pulao, curries, chai, pickles, and many sweets. Clove oil is used in dentistry (for toothache relief), in Ayurvedic and traditional medicine, and in perfumery.
🧑🌾 Care requirements
Full sun to partial shade
Regular; keep moist but not waterlogged
High (60-80%)
20-32°C
Rich volcanic loam; pH 5.5-7.0
Balanced NPK every 3 months; organic mulch
📋 Plant facts
- 🌍 Origin
- Maluku Islands (Moluccas) of Indonesia
- 📏 Max height
- 8-15 m
- 📐 Spread
- 4-8 m
- 🕰️ Bloom time
- Twice yearly; clusters of crimson buds at branch tips
- 🎨 Bloom color
- Crimson buds opening to small yellow-white flowers
- 🍃 Foliage color
- Glossy dark green lance-shaped leaves (fragrant when crushed)
- ⏳ Lifespan
- 80-100+ years
- 📈 Growth rate
- Slow — fruits in 6-8 years
- ☠️ Toxicity
- Clove oil toxic in large amounts; safe in culinary use
- 🌱 Propagation
- Seeds, cuttings, air layering
🛡️ Health & Safety
Clove oil toxic in large amounts; safe in culinary use
Common issues
- Sumatra disease (slow decline — most serious), dieback, leaf spot, sooty mold, scale insects, clove aphid, stem borer, mongoose/squirrel damage to fallen buds, poor yield from inadequate pollination, sudden death from waterlogging
💡 Care tips
- Grow from fresh seeds (cloves bought from store will NOT sprout — they are dried buds, not seeds; you need fresh ripe seeds from a clove tree) or from semi-hardwood cuttings/air layering (preferred — earlier fruiting and truer to type). Plant seeds immediately — they lose viability within a week. Seeds germinate in 4-6 weeks. Plant seedlings in full sun to partial shade in rich, well-draining, slightly acidic soil enriched with compost. Clove trees thrive in humid tropical conditions — ideal temperature 20-32°C, humidity 60-80%, rainfall 150-250 cm/year. In home gardens outside the tropics, grow in a greenhouse — cloves cannot tolerate frost or extended cold. Water regularly — never let the soil dry out completely, but ensure excellent drainage (waterlogging kills trees). Mulch heavily to retain moisture and feed soil life. Feed with balanced organic fertilizer every 3 months; supplement with zinc and boron (deficiencies common). Young trees need shade for the first 2-3 years — plant under a temporary shade tree or shade net. Prune lightly to develop a strong framework; mature trees need little pruning. Trees begin bearing at 6-8 years and reach full production at 20-30 years, continuing for 80+ years. Harvest flower buds twice yearly (the main harvest is in autumn/winter) when buds turn from green to pinkish-red, just before they open. Pick by hand or knock branches gently with bamboo poles onto a tarp. Dry buds in the sun for 4-5 days until they are dark brown, hard, and nail-like (about 60-70% moisture loss). Store in airtight containers in a cool, dry place — cloves keep their aroma for years if protected from air and light. A mature tree yields 3-7 kg dried cloves per year.