Definition:

Tea cultivation is the agricultural practice of growing Camellia sinensis — the tea plant — and managing the crop from establishment through harvest. Every stage of cultivation — from cultivar selection and planting method to pruning schedule and harvest timing — influences the character, quality, and yield of the final processed tea.

The Tea Plant: Camellia sinensis

Tea is produced from two principal varieties of a single species:

Many cultivars have been bred from these two genetic bases for specific growing regions and flavour profiles.

Propagation

• Vegetative (clonal) propagation — cuttings from a mother bush are rooted to produce genetically identical plants. This is standard in commercial and specialty tea farming because it preserves cultivar characteristics reliably.
• Seed propagation — seeds produce variable plants; generally used only in wild collections or when preserving genetic diversity is the goal.

Growing Conditions

Climate: Tea prefers:

• Warm temperatures: 18–30°C ideal; frost-sensitive (though some cultivars, especially sinensis, can tolerate brief frost)
• Rainfall: 1,500–3,000mm annually, well-distributed
• Humidity: High relative humidity benefits leaf quality

Soil:

• Well-draining, acidic soils (pH 4.5–5.5)
• Rich in organic matter
• Mountainous or sloping terrain encourages drainage and is associated with higher-quality teas

Altitude:

Higher elevation generally produces slower-growing plants with greater concentration of flavour compounds (especially amino acids and aroma compounds). This underlies the premium placed on high-mountain teas in China, Taiwan, and India.

Pruning

Tea bushes are pruned to:

• Maintain a flat picking table at a convenient working height (~80–100cm)
• Stimulate the production of new vegetative growth (the tender new shoots that constitute the pluckable material)
• Renew ageing or damaged wood

Pruning cycles vary by region: annual or biennial hard pruning is common, with lighter maintenance pruning within seasons.

Harvesting

The plucking standard determines quality:

• Fine plucking (imperial/imperial crown): Terminal bud + 1–2 young leaves — highest quality, lowest yield
• Medium plucking: Bud + 3 leaves — standard for many green and oolong teas
• Coarse plucking: Older leaves included — bancha, houjicha, and many commercial black teas

Harvest seasons vary by region:

• China/Taiwan: Spring first flush (qingming/before rain harvest) is most prized; second flush, summer, and autumn flushes follow
• Japan: Shincha (first harvest, late April–May) is most valued
• Darjeeling/India: First flush (March–April), second flush (May–June), monsoon, and autumn

Shade Growing

Some tea is deliberately shaded before harvest:

• Gyokuro and Matcha: Shaded 20–30 days before harvest in Japan — shade stimulates amino acid production (especially thianine) and reduces catechins, producing sweeter, more umami-rich, less astringent tea
• Kabusecha: Lighter shading (~10 days)

Related Terms

• Pu-erh Processing
• White Tea Processing
• Orthodox Tea
• Alishan
• Benifuuki
• Leaf to Water Ratio