Types

• Winter requires different care for different types of plants. Bonsai whose natural habitat is similar to that of your area should be left outside, while others require climate-controlled environments.
  
  

Benefits

• The cold winter is a necessary time for many trees, since they must enter a dormant period where no growth occurs. This stimulates growth after dormancy has ended.
  
  

Care

• Besides monitoring the temperature, very little maintenance is required during the winter. Water the bonsai occasionally to keep the soil from drying out.
  
  

Considerations

• Temperature must be monitored for all bonsai during the winter. Temperatures below 15 degrees Fahrenheit will be fatal to most bonsai.
  
  

Protection

• When temperatures fall below 15 degrees, place outside bonsai in an unheated garage or shed to protect them. When temperatures are consistently above 40 degrees, the dormancy period ends.