Because bonsai grow in small containers and inorganic soil, they need regular feeding — but less is more. Avoid high-nitrogen fertilizers because these encourage uncontrolled growth. Instead: Use a ...

Give water when the soil dries out. Provide fertilizer on a regular schedule once a month. Your bonsai will need six to eight hours of light. Indoors, placing it on a windowsill is a good idea.

Poor soil choice: Regular potting mix won't encourage the proper bonsai root system. Over-fertilizing: Bonsai trees need fertilizer, but fertilizers that encourage growth can ruin their shape.