What is a realistic yield and income range from a mature black pepper garden?

Black pepper yield depends heavily on vine age, variety, spacing and management. A mature well managed vine can give from a few hundred grams up to a couple of kilograms of dry pepper, and per acre dry yields commonly range broadly from a few hundred kilograms upward in good gardens, so treat these as ranges and verify with local growers. Pepper prices are notoriously volatile, swinging widely between years on global supply, so income is not steady, in good price years pepper is very rewarding and in low years margins are thin. Premium bold garbled lots and special grades earn above ordinary pepper. Because of the price swings, plan with a range, keep your quality high so you always sit at the better end of the rate, and do not take large loans based on a peak price year.