Tea Plant
Camellia sinensis
📖 About this plant
Tea (Camellia sinensis), known as chai in Hindi, tey in Tamil, and cha in Chinese, is an evergreen shrub or small tree in the Theaceae family, prized for its young leaves and buds — which produce all true tea (white, green, oolong, black, pu-erh — all from the same plant, processed differently). Native to a broad area from Yunnan province in southwest China through upper Burma to Assam in northeast India, tea has been cultivated for over 5,000 years — Chinese legend attributes its discovery to Emperor Shennong in 2737 BC (tea leaves blew into his boiling water). From China, tea spread to Japan (brought by Buddhist monks in the 9th century — the source of the famous Japanese tea ceremony), and through Dutch and Portuguese traders to Europe in the 16th-17th centuries (where it became a defining feature of British culture). The British, seeking to break the Chinese monopoly, smuggled tea seeds and experts out of China and established plantations in India (Assam, Darjeeling, Nilgiris) and Ceylon (Sri Lanka) in the 19th century — establishing the famous Indian and Sri Lankan tea industries. Today, India is the second-largest tea producer in the world (after China) and the largest consumer — major tea-growing regions include Assam (the worlds largest tea-growing area — strong, malty black tea), Darjeeling (the “champagne of teas” — delicate muscatel-flavored black tea from the Himalayan foothills), the Nilgiris (south Indian high-grown tea), and Kangra (Himachal Pradesh). The tea plant is a slow-growing evergreen shrub, 1-2 m tall when pruned (or a 10-15 m tree if unpruned), with dark green glossy elliptical leaves, small white fragrant flowers (related to camellias), and small woody capsules. Only the youngest leaves — the unopened bud and the top 2-3 leaves (called “two and a bud”) — are harvested; older leaves are too coarse and bitter. The leaves are processed differently to produce the main tea types: white (dried only — the least processed), green (pan-fried or steamed to prevent oxidation, then dried), oolong (partial oxidation), black (fully oxidized — the most common in India and the West), and pu-erh (fermented and aged). Tea contains caffeine (a stimulant), theanine (an amino acid that produces calm focus — the “tea meditation” effect), and abundant antioxidants (catechins in green tea, theaflavins and thearubigins in black tea). In Ayurvedic and traditional medicine, tea is valued for alertness, digestion, and antioxidants.
🧑🌾 Care requirements
Partial shade (high-elevation mist)
Regular; keep evenly moist
High (70-90%)
10-30°C
Acidic well-draining loam; pH 4.5-6.0
Balanced NPK; nitrogen for leaf yield
🌐 Common Names
📋 Plant facts
- 🌍 Origin
- Yunnan province of China and Assam (India)
- 📏 Max height
- 1-2 m (pruned bush) or 10-15 m (unpruned tree)
- 📐 Spread
- 1-2 m (pruned)
- 🕰️ Bloom time
- Autumn; small white fragrant flowers
- 🎨 Bloom color
- White with yellow center
- 🍃 Foliage color
- Dark green glossy elliptical leaves (young leaves lighter)
- ⏳ Lifespan
- 50-100+ years (productive)
- 📈 Growth rate
- Slow-moderate — first harvest in 3-5 years
- ☠️ Toxicity
- Non-toxic; caffeine content (mild stimulant)
- 🌱 Propagation
- Seeds, stem cuttings, grafting
🛡️ Health & Safety
Non-toxic; caffeine content (mild stimulant)
Common issues
- Blister blight (most serious in high-elevation plantations — Exobasidium)
- tea mosquito bug
- red spider mite
- thrips
- tea leaf roller
- termite damage
- root rot (Phytophthora and Armillaria)
- gray blight
- brown blight
- drought stress
- frost damage
💡 Care tips
- Grow from seeds (slower, more variable) or semi-hardwood cuttings (preferred — true to type, faster).
- Plant in partial shade in high-elevation, misty, humid conditions — tea thrives in "morning fog, afternoon sun" climates.
- Plant in acidic (pH 4.5-6.0), well-draining loam enriched with compost and leaf mold.
- Tea MUST have acidic soil — alkaline soil produces poor growth and yellow leaves.
- Plant in spring (in India, plant just before the monsoon).
- Space plants 1-1.5 m apart in rows 1.5-2 m apart (commercial plantations are tightly packed for high leaf yield).
- Water regularly — keep soil evenly moist but not waterlogged.
- Mulch heavily to conserve moisture and feed soil life.
- Feed with balanced NPK every 2-3 months
- nitrogen is critical for leaf production (foliar sprays of urea are common in commercial plantations).
- The plant grows slowly — 30-60 cm in the first year, 1-1.5 m in 3-5 years.
- Prune plants at 3-4 years old to a flat-topped bush about 1 m tall (called a "plucking table") — this encourages dense new growth and keeps the plant at harvestable height.
- Re-prune every 3-5 years (called "collar pruning" — cut back hard to rejuvenate old plants).
- The plant begins producing harvestable leaves at 3-5 years and reaches full production at 7-10 years, continuing for 50-100+ years.
- For leaf harvest: pluck the top 2-3 leaves and the unopened bud ("two and a bud" or "three and a bud") every 7-14 days during the growing season.
- Pluck regularly — plucking encourages new shoots.
- The flush (new growth) is what is harvested
- old leaves are left on the plant.
- Process leaves immediately: for green tea — steam or pan-fry leaves for 1-2 minutes to prevent oxidation, roll, and dry
- for black tea — wither leaves 12-18 hours, roll to bruise, fully oxidize 2-4 hours, then dry
- for oolong — wither, partial oxidize, dry
- for white tea — simply dry the unopened buds and youngest leaves.
- Dry all teas to 3% moisture and store in airtight containers away from light and moisture.
- Tea is an attractive ornamental even if you do not harvest the leaves — the glossy leaves, fragrant white flowers, and red new growth make it a beautiful landscape plant for acidic-soil gardens.