Climate, soil and varieties (hill crop in the source)
Robusta suits 500–1000 m with 1000–2000 mm rain and blossom showers in February–March; Arabica suits 1000–1500 m with 1600–2500 mm and blossom showers in March–April; both need "backing" showers in April–May. Soil: deep, friable, open-textured, humus-rich and slightly acidic (pH 4.5–6.5). Arabica varieties include Sln 795, Sln 7, Sln 9, Sln 10, Cauvery, Chandragiri and San Ramon; Robusta: Sln 274, Sln 270, Sln 3.
Pending expert review
Source
Crop Production Guide – Horticulture Crops 2020 (Directorate of Horticulture and Plantation Crops, Tamil Nadu & Tamil Nadu Agricultural University (TNAU)), Coffee – Varieties; soil; climate, p. 196
