Coffee tree or coffee plant is a very easy to grow houseplant. This is an excellent plant for the beginning indoor gardener. The coffee plant likes bright indirect sun. It likes its soil to remain moist, not soggy. Also it likes the temperature to be above 65 degrees. It wants a humid environment, placing the plant on a tray of pebbles with water will help. The coffee plant takes around 5 years to mature and flower. If the flowers are pollinated, there is a chance it will produce fruit. The seed inside the bright red fruit is the coffee bean. The bean is the only nontoxic part of the coffee plant.