soil configuration on Bonsai
Quick answer
If your Bonsai has soil configuration, the most likely cause is: Bonsai soil differs from standard potting mix — it must simultaneously retain moisture (for water availability) while draining freely (to prevent root rot). This balance is achieved through specific components.
Start here:
- 1. Akadama (volcanic soil) forms the base — available in large, medium, and small grain sizes
- 2. Keto (peat clay) retains water and fertilizer — ideal medium after root washing
Why Bonsai gets soil configuration
Bonsai soil differs from standard potting mix — it must simultaneously retain moisture (for water availability) while draining freely (to prevent root rot). This balance is achieved through specific components.
How to reverse soil configuration on Bonsai
- 1
Akadama (volcanic soil) forms the base — available in large, medium, and small grain sizes
- 2
Keto (peat clay) retains water and fertilizer — ideal medium after root washing
- 3
Fuji sand (volcanic ash from Mt. Fuji) provides drainage and aeration
- 4
Standard mix: 3 parts small-grain akadama + 1 part keto + 1 part fine-grain Fuji sand
- 5
Add slow-release fertilizer (MagAmp) per package directions
- 6
For beginners, commercial bonsai soil from garden supply shops is an acceptable alternative
Keep soil configuration off this Bonsai
Use proper bonsai soil components; never use standard garden soil.