How to Plant Boxwood Bonsai

How to Plant Boxwood Bonsai

Choosing the Right Boxwood Bonsai

Selecting the right Boxwood Bonsai is crucial for ensuring the health and aesthetics of your miniature tree. Boxwood species are known for their dense foliage and ability to withstand aggressive pruning, making them a popular choice for Bonsai enthusiasts. In this section, we will discuss the types of Boxwood suitable for Bonsai and the factors to consider when choosing your Boxwood Bonsai.

Types of Boxwood Suitable for Bonsai

There are several Boxwood species, but two are particularly well-suited for Bonsai cultivation:

Buxus microphylla (Japanese Boxwood): This species is native to Japan and has small, rounded leaves. It is a slow-growing variety that is ideal for Bonsai due to its compact growth habit and ability to develop a thick trunk over time.

Buxus sempervirens (Common Boxwood): This species is native to Europe, Asia, and Africa. It has larger, elongated leaves compared to Buxus microphylla and grows at a faster rate. It is also suitable for Bonsai cultivation, but requires more frequent pruning to maintain its shape.

Factors to Consider When Choosing a Boxwood Bonsai

When selecting a Boxwood Bonsai, keep the following factors in mind:

  • Size: Consider the size of the tree you want to achieve. Smaller Boxwood Bonsai trees are easier to maintain, but larger trees can make a more dramatic statement. Make sure to choose a tree with a trunk thickness proportional to the desired final size.
  • Shape: Look for a tree with an interesting shape or potential for shaping. Boxwoods can be trained into various Bonsai styles, such as formal upright, informal upright, slanting, or cascade. Choose a tree with a structure that lends itself to the style you prefer.
  • Age: Older trees have more character and can be more expensive, but they may also require more maintenance and care. Younger trees are more affordable and can be shaped more easily, but they will take longer to achieve a mature appearance.

By considering these factors and selecting the right Boxwood species, you will be well on your way to creating a beautiful and thriving Boxwood Bonsai.

Preparing the Boxwood Bonsai for Planting

Proper preparation of your Boxwood Bonsai is essential for a successful planting and to ensure the health and growth of your tree. In this section, we will discuss the necessary steps to prepare your Boxwood Bonsai for planting, including inspecting and preparing the roots, and soaking the roots before planting.

Inspecting the Roots

Before planting your Boxwood Bonsai, it is important to inspect and prepare the roots. Follow these steps:

  • Remove the tree from its container: Gently remove the tree from its nursery pot or container, taking care not to damage the roots.
  • Prune damaged or excessively long roots: Using sharp, clean pruning shears or scissors, trim away any damaged, dead, or excessively long roots. This will encourage new root growth and help prevent root rot.
  • Untangle the root ball: Carefully untangle the root ball by gently pulling apart the roots. This will allow the roots to spread out in the new pot and promote better water and nutrient absorption.

Soaking the Roots

Once the roots have been inspected and prepared, it is important to hydrate them before planting. Soaking the roots helps prevent transplant shock and ensures that the tree has adequate moisture to establish itself in its new environment.

  • Fill a container with water: Choose a container large enough to hold the root ball of your Boxwood Bonsai. Fill the container with room temperature water.
  • Place the root ball in the water: Gently lower the root ball into the water, ensuring that the entire root system is submerged.
  • Soak the roots: Allow the roots to soak for about 30 minutes to an hour. This will help the tree absorb water and prepare it for planting.

After completing these steps, your Boxwood Bonsai will be properly prepared for planting. In the next sections, we will discuss how to prepare the Bonsai pot and plant your Boxwood Bonsai.

Preparing the Bonsai Pot

Before planting your Boxwood Bonsai, it is essential to properly prepare the Bonsai pot to ensure optimal drainage, anchorage, and overall health of your tree. In this section, we will discuss selecting the appropriate pot, adding drainage mesh, anchoring wires, and preparing the substrate.

Selecting the Appropriate Pot

Choosing the right pot for your Boxwood Bonsai is crucial for both aesthetic and practical reasons. Consider the following factors when selecting a pot:

  • Size: The pot should be large enough to accommodate the root system of your Boxwood Bonsai, with some room for growth. As a general rule, the pot’s depth should be roughly the same as the trunk’s diameter, and the length should be approximately two-thirds the height of the tree.
  • Material: Bonsai pots are available in various materials, such as ceramic, plastic, and mica. Ceramic pots are the most traditional choice and offer excellent drainage and breathability. Plastic and mica pots are more affordable and lightweight but may not provide the same level of drainage and insulation.
  • Drainage: Ensure that the pot has adequate drainage holes to prevent waterlogging and root rot. Most Bonsai pots have one or more drainage holes at the bottom.

Adding Drainage Mesh

To prevent soil from escaping through the drainage holes and to improve water drainage, add drainage mesh to the bottom of the pot. Follow these steps:

  • Cut the mesh: Measure the size of the drainage holes and cut pieces of mesh slightly larger than the holes.
  • Place the mesh: Position the mesh pieces over the drainage holes, ensuring that they cover the holes completely.

Anchoring Wires

Anchoring wires help secure the Boxwood Bonsai in the pot, providing stability and preventing the tree from shifting during watering or strong winds. Follow these steps to add anchoring wires:

Cut the wire: Using a suitable Bonsai wire (usually aluminum or copper), cut two pieces of wire, each long enough to go through the drainage holes and wrap around the root ball.

Thread the wire: Thread each piece of wire through a drainage hole, leaving equal lengths of wire on both the inside and outside of the pot.

Adding a Layer of Substrate

Before placing the Boxwood Bonsai in the pot, add a layer of substrate to the bottom. This will provide a base for the roots and promote proper drainage.

  • Choose the right substrate: A well-draining soil mixture is essential for Boxwood Bonsai. A mix of akadama, pumice, and organic potting soil in a 2:1:1 ratio is a good option.
  • Add the substrate: Spread a layer of the substrate mix at the bottom of the pot, approximately 1-2 inches deep, depending on the pot’s size.

With the Bonsai pot prepared, you are ready to plant your Boxwood Bonsai. In the next section, we will discuss positioning the tree in the pot, adding substrate, and securing the tree with anchoring wires.

Planting the Boxwood Bonsai

Now that your Boxwood Bonsai and pot are prepared, it’s time to plant your tree. In this section, we will discuss positioning the tree in the pot, adding substrate, and securing the tree with anchoring wires.

Positioning the Tree in the Pot

The placement of your Boxwood Bonsai in the pot is crucial for achieving an aesthetically pleasing and balanced appearance. Follow these steps:

Consider the front of the tree: Determine the most visually appealing side of your Boxwood Bonsai, which will become the front of the tree. This side should showcase the tree’s best features, such as the trunk’s movement and the branch structure.

Place the tree in the pot: Gently lower the tree into the pot, positioning it slightly off-center for a more natural and balanced look. The tree’s front should face towards the viewer, and the trunk should be upright or at the desired angle, depending on the chosen Bonsai style.

Adding Substrate

After positioning the tree in the pot, it’s time to add substrate to cover the roots and provide a stable base for the tree.

  • Add more substrate: Carefully add more of the prepared substrate mix around the roots, ensuring that all roots are covered and the tree is at the desired planting depth. The soil surface should be slightly below the rim of the pot.
  • Settle the substrate: Use a chopstick or similar tool to gently work the substrate around the roots, removing any air pockets and ensuring that the soil is firmly packed around the root ball.

Securing the Tree

To ensure your Boxwood Bonsai remains stable in the pot, use the previously installed anchoring wires to secure the tree.

  • Bring the wires over the root ball: Position the wires so that they cross over the root ball, ideally near the base of the trunk.
  • Twist the wires together: Gently pull the wires tight, ensuring that the tree is secure and stable in the pot. Then, twist the wires together to hold them in place.
  • Trim the excess wire: Use wire cutters to trim any excess wire, leaving a small tail that can be bent down and hidden beneath the substrate.

With your Boxwood Bonsai now planted, it’s important to provide proper post-planting care, including watering, fertilizing, pruning, and pest management. In the following sections, we will discuss these aspects of Boxwood Bonsai care and maintenance.

Post-Planting Care

After planting your Boxwood Bonsai, it’s essential to provide proper care to ensure its health, growth, and aesthetics. In this section, we will discuss watering, fertilizing, pruning, and pest management for your Boxwood Bonsai.


Proper watering is crucial for the health of your Boxwood Bonsai. Follow these guidelines:

  • Check the soil moisture: Use your finger to check the moisture level of the substrate. If the top 1-2 cm of soil feels dry, it’s time to water your Bonsai.
  • Water thoroughly: When watering, use a watering can or hose with a fine nozzle to gently and evenly moisten the soil. Continue watering until water starts to drain from the bottom of the pot.
  • Avoid overwatering: Boxwood Bonsai prefers well-draining soil and does not tolerate waterlogged conditions. Overwatering can lead to root rot and other health issues.


Fertilizing your Boxwood Bonsai is essential for providing essential nutrients and promoting healthy growth. Here are some fertilizing tips:

  • Use a balanced fertilizer: Apply a balanced liquid or granular fertilizer, such as a 10-10-10 or 14-14-14 formula, during the growing season (spring and summer).
  • Follow the manufacturer’s instructions: Always follow the recommended application rate and frequency provided by the fertilizer manufacturer.
  • Reduce fertilizing in winter: During the dormant season (winter), reduce the frequency of fertilizing or use a low-nitrogen fertilizer to avoid excessive growth.


Pruning is essential for maintaining the desired shape and size of your Boxwood Bonsai. Here are some pruning tips:

  • Prune regularly: Regular pruning helps maintain the tree’s shape and encourages branching. Prune new growth back to 1-2 pairs of leaves as needed during the growing season.
  • Remove unwanted growth: Trim away any unwanted branches, suckers, or foliage that detract from the overall appearance of your Bonsai.
  • Perform structural pruning: Structural pruning, which involves removing larger branches or reshaping the trunk, is best done during the dormant season (winter) when the tree’s energy is focused on the roots.

Pest Management

Boxwood Bonsai can be affected by pests such as spider mites, scale insects, and aphids. Monitor your tree regularly for signs of pests and take the following steps if needed:

  • Remove pests manually: If you notice a small number of pests, remove them manually using a soft cloth or cotton swab dipped in soapy water.
  • Use insecticidal soap or horticultural oil: For larger infestations, apply insecticidal soap or horticultural oil according to the manufacturer’s instructions. These treatments are generally safe for use on Boxwood Bonsai and can help control pests without harming the tree.
  • Maintain proper care: Keeping your Boxwood Bonsai healthy and well-maintained will make it less susceptible to pest infestations.

By following these post-planting care guidelines, your Boxwood Bonsai will thrive and provide you with years of enjoyment. Remember that Bonsai is an ongoing process, and regular care and attention will ensure the health and beauty of your tree.

Ongoing Maintenance and Care

To ensure the health and beauty of your Boxwood Bonsai, it’s essential to provide ongoing maintenance and care. In this section, we will discuss repotting, wiring, and seasonal care for your Boxwood Bonsai.


Repotting is necessary to prevent your Boxwood Bonsai from becoming root-bound and to refresh the soil. Here are some guidelines for repotting:

  • Repotting frequency: Boxwood Bonsai typically requires repotting every 2-3 years for younger trees and every 3-5 years for older, more established trees.
  • Best time to repot: The ideal time to repot your Boxwood Bonsai is during the early spring, just before the new growth starts.
  • Root pruning: When repotting, gently remove the tree from its pot and trim back approximately 1/3 of the root mass. This encourages new root growth and helps maintain the tree’s size.
  • Refresh the soil: Replace the old soil with fresh substrate, following the same guidelines as mentioned in the “Preparing the Bonsai Pot” section.


Wiring is used to shape and train the branches and trunk of your Boxwood Bonsai. Here are some tips for wiring:

  • Choose the right wire: Use aluminum or copper Bonsai wire with a thickness appropriate for the size of the branch or trunk you are shaping.
  • Apply the wire: Wrap the wire carefully around the branch or trunk at a 45-degree angle, ensuring that the wire is snug but not too tight.
  • Shape the tree: Gently bend and shape the wired branches or trunk to achieve the desired form. Be cautious not to break or damage the tree in the process.
  • Monitor the wire: Check the wired branches regularly to ensure the wire is not cutting into the bark. Remove the wire when the branch has set in the desired position, typically after several months.

Seasonal Care

Boxwood Bonsai requires different care depending on the season. Here’s a brief overview of seasonal care:

  • Spring: Spring is the time for repotting, fertilizing, and pruning to encourage new growth. Monitor the tree for pests and diseases as the temperatures rise.
  • Summer: Continue fertilizing and pruning as needed during the growing season. Ensure consistent watering, especially during hot and dry periods.
  • Autumn: Reduce fertilizing and pruning in the fall as the tree prepares for dormancy. Begin to protect the tree from cold temperatures as winter approaches.
  • Winter: During the dormant season, ensure that your Boxwood Bonsai is protected from extreme cold and frost. Water sparingly, and avoid fertilizing and pruning during this time.

By following these ongoing maintenance and care guidelines, your Boxwood Bonsai will continue to thrive and develop its unique character and beauty. Remember that Bonsai is an art form that requires patience, dedication, and a willingness to learn from both your successes and mistakes.


Cultivating a Boxwood Bonsai is a rewarding and fulfilling hobby that combines art, horticulture, and mindfulness. By following the guidelines provided for preparing the Bonsai pot, planting, post-planting care, and ongoing maintenance, you can ensure the health and beauty of your Boxwood Bonsai for years to come.

Remember that Bonsai is a journey of continuous learning and growth, both for you and your tree. As you develop your skills and understanding, your Boxwood Bonsai will reflect your dedication and care, becoming a unique and cherished work of living art.

Embrace the process, enjoy the journey, and take pride in the growth and development of your Boxwood Bonsai.