Most ficus bonsai trees can produce aerial roots in their natural habitat, which are often presented in appealing bonsai creations with many aerial root pillars or root over rock styles. To enable aerial root growth in our homes a humidity of nearly 100% must be achieved artificially. You can use a glass cover, fish tank or a construction with transparent sheets for this purpose.

Aerial roots grow down vertically from the branches and when they reach the soil they develop into strong pillar-like trunks. In tropical climates a single tree can become a forest-like structure and cover an enormous expanse.
The leaves of most bonsai ficus species have special pointed tips from which the rainwater drips off. The leaves can be of very different sizes, between 2 and 50 cm long (1 – 20 inches).

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