The dry leaf yields greatly differ depending on a number of factors. They primarily include:

Germplasm characteristics Soil nutrition level Irrigation Age of plantation Spacing Growing conditions Management Practices

Maximum yields are recieved in the second and the third year in comparison to the first year. Seed yields mature when plants are 4 to 5 years of age. The productivity of these plants can continue upto 20 years but a decline in the yeild becomes notable by 12 years. If the leaf and seed yields are good, then their production ranges from 500 kgs to 2,500 kg a year.