Last updated: 16/10/2022

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Bonsai soil is a special type of potting mix that has been designed to meet the needs of bonsai trees. It should be light and porous, allowing for good drainage while still retaining enough moisture to keep your tree healthy. The best bonsai soils will also contain ingredients such as charcoal or diatomaceous earth which help reduce the pH level in order to prevent root rot from occurring on your plant’s roots.

The best Bonsai Soil in the UK: Our selection

Bonsai Soil: Frequently asked questions

What types of Bonsai Soil are there and what determines a good product?

There are many different types of Bonsai Soil, but the most common is Akadama. This soil has a very high cation exchange capacity and it will hold nutrients well for your bonsai trees. It also drains water quickly so that you don’t have to worry about over watering or underwatering your plants. You can read more about this type of soil here .

A good Bonsai soil should be light and porous, allowing for excellent drainage. It also needs to have a neutral pH level (6-7) so that it does not affect the acidity of your bonsai’s roots. Finally, it must contain nutrients such as nitrogen, phosphorus and potassium in order to feed your tree properly.

Who should use a Bonsai Soil?

Anyone who is growing a bonsai tree.

Based on what criteria should you buy a Bonsai Soil?

The main criteria for selecting a Bonsai soil is that it should be light, porous and free draining. It must also have good water retention capacity to ensure the roots of your bonsai do not dry out too quickly. You will find many soils on the market which are suitable but you may need to experiment with different types until you find one that suits your particular tree species best.

You should look out for the ingredients used. It is important that good quality organic matter such as peat moss, pumice or lava rock are included in Bonsai Soil Mixes. These act as a reservoir of water and nutrients to feed your bonsai tree over time. Also make sure you check if there are any chemical additives like fertilizers or pesticides which could harm your plants health over time.

What are the advantages and disadvantages of a Bonsai Soil?


Bonsai soil is made specifically for bonsai trees. It has the right amount of air and water retention, as well as nutrients to help your tree grow healthy and strong.


The biggest disadvantage of a Bonsai Soil is that it does not drain well. This means the soil will stay wet for longer periods and can lead to root rot in your bonsai tree. It also has no air pockets, which are needed by plants so they do not suffocate from lack of oxygen.

Shopping Guide: Everything you need to know

Which brands and manufacturers are represented in our review?

In our review, we present products from various manufacturers and suppliers. The list includes products from the following brands and manufacturers, among others:

  • Westland
  • Growth Technology Ltd
  • Grow Buddha

What is the price range of the featured products?

The cheapest Bonsai Soil in our review costs around 5 pounds and is ideal for customers who are conscious about their money. However, those who are willing to spend more money for better quality can also spend around 20 pounds for one of the more expensive products.