Why Do You Put Bonsai Trees In The Fridge

Did you know that refrigerating bonsai trees can greatly benefit their overall health and longevity?

In fact, studies have shown that storing bonsai trees in the fridge can help regulate their temperature and create a more controlled environment, mimicking their natural habitat.

By doing so, you can ensure that your bonsai trees thrive and flourish for years to come.

In this article, we will delve into the science behind refrigerating bonsai trees, explore the benefits, and provide you with proper techniques for storing them in the fridge.

Key Takeaways

  • Refrigerating bonsai trees slows down growth and maintains dormancy during winter months.
  • Cold temperatures reduce metabolic processes and conserve energy in bonsai trees.
  • Cooling bonsai trees in the fridge promotes healthy growth and vibrant appearance.
  • Proper techniques for storing bonsai trees in the fridge include maintaining temperature, humidity, lighting, and watering levels.

The Science Behind Refrigerating Bonsai Trees

Refrigerating bonsai trees helps to slow down their growth and maintain their dormancy during the winter months. Bonsai trees, like other plants, have a natural cycle of growth and dormancy. Dormancy is a period of rest where the tree conserves energy and prepares for the upcoming growing season.

Temperature regulation plays a crucial role in the dormancy of bonsai trees. When exposed to colder temperatures, the tree’s metabolic processes slow down, reducing its energy consumption. This allows the tree to conserve nutrients and resources.

Benefits of Cooling Bonsai Trees in the Fridge

Chilling your bonsai in the fridge can promote healthy growth and help maintain its vibrant appearance. Refrigeration is considered one of the most effective ways to regulate their temperature. By exposing your bonsai to cooler temperatures, you can simulate the natural winter dormancy period they experience in their native habitats. This dormancy period is essential for the tree’s overall health and longevity.

Cooling your bonsai in the fridge also has long-term effects on its growth and development. It helps to control pests and diseases, as many insects and pathogens are less active in colder temperatures. Refrigeration slows down the tree’s metabolic rate, conserving energy and extending its lifespan.

Overall, chilling your bonsai in the fridge is a scientifically-backed method that ensures the well-being and beauty of your miniature tree.

Factors to Consider Before Refrigerating Bonsai Trees

Before putting your bonsai in the fridge, it’s important to consider factors such as the temperature settings, humidity levels, and the specific needs of your tree species. Overwintering bonsai, which involves placing them in a refrigerator to simulate winter conditions, can be a beneficial practice for certain tree species.

Here are four factors to consider before refrigerating your bonsai:

  1. Temperature requirements: Different bonsai tree species have different temperature preferences during the winter months. It is crucial to research the optimal temperature range for your specific tree to ensure its health and survival.

  2. Humidity levels: While refrigerating bonsai trees, it is essential to maintain the right humidity levels. Some species require higher humidity, which can be achieved by placing a tray of water near the bonsai or by using a humidifier.

  3. Lighting conditions: Although the bonsai will be in a dormant state, it is important to provide some light to prevent it from weakening excessively. A small amount of fluorescent or grow lights can be beneficial during the winter months.

  4. Watering schedule: Adjust your watering schedule based on the tree’s dormancy period. Most bonsai trees require less frequent watering during winter, as they are not actively growing.

Proper Techniques for Storing Bonsai Trees in the Fridge

To properly store your bonsai trees in the fridge, make sure to follow these techniques for maintaining the right temperature, humidity, lighting, and watering conditions.

Firstly, set the fridge temperature between 32-41°F (0-5°C) to ensure the tree remains dormant without freezing.

Monitor the humidity levels by placing a tray filled with water near the bonsai, ensuring it does not touch the tree.

For lighting, maintain a consistent 12-14 hours of artificial light each day using fluorescent or LED lamps.

Watering is crucial, as the tree’s water intake decreases during dormancy. Water sparingly, ensuring the soil remains slightly moist but not wet.

However, it is important to note that storing bonsai trees in the fridge is not the only option. Alternatives include placing the tree in an unheated garage or using an outdoor cold frame.

Long-term refrigeration can have negative effects on the tree, such as root damage and reduced vigor. Therefore, it is recommended to limit fridge storage to a few months to prevent these potential issues.

Common Mistakes to Avoid When Refrigerating Bonsai Trees

When refrigerating your bonsai, make sure to avoid these common mistakes to ensure the health and vitality of your tree. Common misconceptions about refrigerating bonsai trees can lead to potential dangers and harm to your beloved plants. Here are four important points to keep in mind:

  1. Overwatering: Many bonsai enthusiasts mistakenly believe that their trees need more water when stored in the fridge. However, excessive watering can lead to root rot and fungal diseases. Remember to water your bonsai regularly but avoid overwatering.

  2. Low Humidity: Refrigerators are notorious for their low humidity levels. To prevent your bonsai from drying out, place a tray of water near the tree or use a small humidifier to maintain the necessary moisture levels.

  3. Extreme Temperatures: Bonsai trees are sensitive to extreme temperatures. Avoid placing your tree near the freezer compartment or in direct contact with the cooling elements. Instead, find a location in the fridge with stable, mild temperatures.

  4. Lack of Light: Bonsai trees require sunlight to thrive. While refrigerating, ensure that your tree receives some indirect light during the day. Consider using a grow light if natural light is limited.


In conclusion, refrigerating bonsai trees can be a beneficial practice for their health and longevity. By carefully considering factors such as temperature and humidity, and following proper techniques for storing them in the fridge, you can ensure their optimal conditions are met.

However, it is important to avoid common mistakes such as leaving them in the fridge for too long or exposing them to extreme temperature changes. Remember, just like a well-preserved secret, keeping your bonsai tree in the fridge can help it thrive for years to come.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *