Bonsai trees prefer a firm soil and a shallow pot or bowl to ensure slow but steady growth.
Bonsai trees prefer a light spot, but out of direct sunlight. Do not place your bonsai above a heater.
Bonsai tress need fertilizer if they are to grow into strong and vital plants. Stop giving fertilizer in the winter months (November-February) to allow your bonsai a period of rest. Only water your bonsai if the potting soil is dry to the touch. Preferably use lukewarm water.
To give the root ball more room to grow, prune the roots in late winter or early spring. Follow the instructions on the label for the the right method and season for pruning your bonsai’s branches.
There are no plant diseases specific to bonsai trees. However, because they are so small and grow slowly, diseases and plagues do tend to affect bonsai trees more than other plants. Prevention is better than the cure.