Tea bush is a tropical and sub-tropical plant and thrives well in hot and humid climate. There is a very close relationbetween climate, the yield and the quality of tea. The ideal temperature for its growth is 20°-30°C and temperatures above 35°C andbelow 10°C are harmful for the bush. Temperature: 21°C to 29°C is ideal for the production of tea. High temperature is required in summer. The lowest temperature forthe growth of tea is 16°C. Rainfall: 150-250 cm of rainfall is required for tea cultivation. Soil: Tea shrubs require fertile mountain soil mixed with lime and iron. The soil should be rich in humus. Land: Tea cultivation needs well drained land. Stagnation of water is not good for tea plants. Heavy rainfall but no stagnancy of water, such mountain slopes are good for tea cultivation.