The coffee plant is actually a tree. However, as the coffee berries are difficult to harvest at the height of a fully-grown tree, the plants are kept at the level of bushes. A fully-grown coffee plant of 2-3 metres bears around 5-8 kilograms of coffee berries per year. From this, 1-2 kilograms of coffee beans are produced. The coffee plant and fruit need time. A tree provides maximum yields after 6 to 8 years.