Explanation:Kerala:Kerala is known as the spice garden of India as it has a variety of spices and which is popular for its taste in the whole world.Idukki and Wayanad are the major districts for the cultivation of spices in the entire state.Kerala is home to a variety of spices: pepper, vanilla, tejpatta cardamom, clove, cinnamon, nutmeg, ginger and turmeric.Kerala is the largest producer of cardamom and pepper in India.Cardamom is called the queen of spices.The commercial part of cardamom is the fruit (capsule) of the plant that is used as a spice and a flavouring agent.Keralas reputation as the land of spices goes back at least 3,000 years.Kerala is known as the spice garden of India.Traders from ancient Phoenicia made tours to Kerala to carry back spices to Mediterranean lands.In the case of pepper, ginger, turmeric, nutmeg and cardamom, there has been a decrease in productivity in the state due to adverse weather conditions like long dry spells and short periods of intense rainfall.For cardamom, tropical, hot and humid climates are suitable. The ideal humidity level is 75%. For the past few years, Kerala has been receiving only 40% of its share of summer rainfall.Idukki and Wayanad are the two major pepper producer districts in Kerala.In 2008- 09 Kerala became the largest pepper producer state with over 41,000 tonnes on 1.75 lakh hectares.Presently, Kerala accounts for over 50 per cent of India's total output.