Castor plant (Ricinus communis) is grown in arid and semi-arid regions. It is cultivated in 30 different countries on commercial scale, of which India, China, Brazil, Russia, Thailand, Ethiopia and Philippines are major castor seed growing countries which accounts about 88% of the world's production.Its seeds are not only used to extract the oil but also for preparing medicines. In India it is a kharif crop, sowing in July-August and arrivals from December onwards till March. Gujarat is the chief producing state, having a share of 86% of domestic production, followed by Andhra Pradesh and Rajasthan. After Gujarat, Rajasthan accounts to the largest production of the castor seeds and helps in fulfilling the requirements of the international market. In Andhra Pradesh, the method of cultivation is quite different because the sowing period is somewhat around the month of May or June while the crop is harvested in September. Around 8 months are consumed to sow and harvest the crop so as to get a higher and better yield.Though every state follows a different pattern of cultivation but still the months of July and August are best for cultivation.
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