How many years before rambutan starts fruiting and what yield can I expect?

Grafted rambutan usually starts giving some fruit a few years after planting, often around the fourth to fifth year, and builds up to good bearing as the tree matures over later years, while seedling trees take much longer. Yield per tree rises a lot with age and good care, so a young tree gives only a small quantity while a well grown mature tree can give a substantial number of kilos per season, but published figures vary widely and depend on variety, pollination, weather, and management, so treat any number as a rough range and verify with growers and your KVK in your own belt. Because it is a niche fruit in India, plan your cash flow knowing the first few years give little or no income and you carry the orchard cost. Good pollination, steady moisture and avoiding flower and fruit drop are the main levers for yield. Confirm realistic local yields before banking on a fixed income.