The Mock buckthorn (Sweet-plum, Chinese sweet plum or Sageretia, botanical Sageretia theezans, family Rhamnaceae) is originated in asia and is easy to maintain and therefore well suited for beginners. This indoor bonsai needs a bright place in winter and, if possible, an outdoor place in summer is fine for a healthy bonsai.
If the tree gets enough water and fertilizer it is fast growing. A good time for repotting a Sageretia bonsai is the beginning of march. Due to strong growth a buckthorn bonsai needs sufficient amounts of fertilizer from March to September.