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How To Protect Bonsai In Winter

Bonsai growers should know how to manage bonsai during winter. Proper bonsai care is an unquestionable requirement in order to help your bonsai thrive. With that in mind, you should remember that the winter is the time for your tree to rest. In this post, you’ll get familiar with how to protect your bonsai during cold atmospheres or winter time. Let’s get started! 

What Kinds of Bonsai Trees Need Protection in the Winter? 

We have four types of bonsai trees divided in terms of cold hardiness: 

  • Semi-Tropical Bonsai trees

The semi-tropical trees can endure moderate ice and cooler temperature for a short timeframe. 

  • Tropical Bonsai trees

These bonsai trees should be protected during winter, and they can be taken indoors. 

  • Hard Bonsai trees 

The hard bonsai can endure extraordinary cold without causing physical damage. 

These trees can handle cold temperature without doing any damage to the roots. 

Setting Up Your Bonsai For Winter 

  • Prior to winter 

It is advisable to put the bonsai tree outside to get an ideal daylight exposure required for growth before encountering the dormancy time frame. Let the bonsai adequately prepare for its dormancy period by fertilizing it. Abstain from pruning the parts of the bonsai two months before the cold season as it may not have adequate time to heal, making the tree powerless. 

  • During winter 

During the dormancy time frame, you may transfer outdoor bonsai trees to a cold, dull location. Hard species can be left outside as long as they have satisfactory protection. When growing indoors, it isn’t necessary to give your tree too much light as long as the temperature is about 50 degrees. Permit your bonsai tree to experience the early stick to trigger its cool hardiness system; this will ensure that it does freeze if the temperature drops. 

In case you prefer not to leave your bonsai outdoors, you can put it in a fridge to give it the required conditions. The correct fridge temperature for bonsai is between 35 to 40 degrees Fahrenheit. 

  • After winter 

When there are no indications of intense cold that may damage the roots, you may set your tree directly in the soil in your garden or, in the event that you want to transplant it, in a gig container. Prune it to bring forth the natural beauty of your bonsai. 

How to Protect Your Bonsai During the Winter 

  1. Cover your tree 

Cover your tree with fabric or newspaper folded over the outside of the bonsai. Plastic and other coverings effectively direct temperature and promote heat. When the sun rises, remove the fabric and the plastic immediately to keep leaves from getting burned. 

  1. Know the right bonsai species for you 

Know your bonsai species so that you can determine whether you should put it in or out during winter. In the event that you are growing a tropical bonsai, shift it to a nursery, since it anticipates a warm temperature. 

  1. Give enough lighting 

Growing light is essential for your tree to achieve its maximum growth. It is advisable to put the bonsai close to the window so that it can still get daylight; thus, it should not need too much UV light from the grow lights. 

  1. Proper watering 

When growing outdoors, make a point to watch proper watering. Recollect that your bonsai won’t need much water during the dormancy time frame. 

  1. Deal with the root system of your tree 

When the bonsai sheds its leaves, it keeps its food in the roots.That is the reason why you should ensure that the roots are well taken care of. 

  1. Check your tree for pests on a regular basis

The dormancy time frame is the perfect time for you to check if your bonsai is already plagued with the pest for early detection and treatment. 


Proper information on how to take great care of your bonsai during winter is essential. Bonsai trees, even the hardy ones, are versatile as they develop indoors or outdoors. All that will depend on conditions you are going to provide mostly in winter.

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