Indoor bonsai are pot-planted miniature trees which are raised in an indoor environment. Growing plants inside the house is quite different than the traditional practice of outdoor landscaping or gardening. A distinct blending of humidity, watering and fertilising, types of soil, temperature, and light is required by indoor bonsai. In contrast to big and full sized outdoor plants and trees, indoor bonsai are usually maintained in smaller sizes.
In caring for indoor bonsai plants, the watering should be with the saturation method and should be twice per week. The fertiliser used must be suitable to the growth of the plant, and should be applied in small amounts every watering time. The best practice in applying fertiliser is to add two drops of Schultz Plant Food to every quart of water. Light also plays a major role in the growth of indoor bonsai plants. Combining cool white and warm white fluorescent tubes is a way to improve the growth of the plants. Moreover, positioning the light at the bottom of the indoor plant will result in downward growth of its branches, if desired. The intense light of metal halide lamps, or incandescent lamps, helps achieve superior growth of the indoor bonsai plant.
Due to the distinct requirements of indoor miniature trees, only a few plants are suited for indoor bonsai. The frost-sensitive character of the members of genus Ficus make it the most desirable plant for indoor bonsai. Other very popular plants for indoor bonsai include the weeping fig, willow leafed fig, Hawaiian umbrella tree, jade plant, dwarf jade, and holiday cactus.