Brinjal is susceptible to serve frost. A long and warm growing season with a mean temperature of 20°–30°C is most favourable for its successful production. In northern plains,it is adversely affected during December-February due to low night temperature. Well drained and fertile sandy loam soils with a pH of 5.5–5.6 are best suited for its cultivation. However, several cultivars are grown successfully under high pH level with a rich application of farmyard manure or green manuring practiced before transplanting.