Soil & Repotting

Bonsai soil must drain quickly while holding enough moisture. Akadama, pumice and lava rock mixes support healthy roots in small pots.

Best Decorative Moss for Bonsai Display

The right surface moss finishes a tree without smothering the soil. Here is how to choose live, dried or spore moss for shows, photos and everyday benches.

Best Akadama for Bonsai Soil

Akadama holds water without going soggy and shows you when to water. Here is how to pick a grade and hardness that suits your climate and watering habits.

Best Pumice for Bonsai

Pumice adds air and structure to a bonsai mix without breaking down. Here is how to choose grade, cleanliness and source so soil still drains in year three.

Best Lava Rock for Bonsai Soil

Lava rock keeps a bonsai mix open and gives fine roots something to grip. Here is how to pick grade, colour and sharpness for your trees and your climate.

Best Premixed Bonsai Soil

A good premix saves sifting and blending and still drains hard. Here is how to judge components, particle size and value before buying a bag for your trees.

Best Drainage Mesh for Bonsai Pots

Mesh keeps soil in and pests out without slowing drainage. Here is how to pick aperture, material and size so your screens outlast several repotting cycles.

Best Anchor Wire for Repotting Bonsai

Tie-down wire holds a freshly repotted tree still so new roots take hold. Here is how to pick gauge, alloy and length for the pots and species you work with.

Best Sphagnum Moss for Bonsai

Sphagnum holds moisture for air layers, weak roots and fresh cuttings. Here is how to judge fibre length, cleanliness and grade before you wrap a branch.

Best Soil Sieves for Bonsai

Sifting out dust is what keeps a bonsai mix draining for years. Here is how to pick mesh sizes, frame strength and stacking sets that survive real bench use.

Best Bonsai Repotting Supplies

A repotting list sorted by particle size and hardness: fired akadama, pumice, lava, sieves, rigid pot mesh, anchor wire and shears that cut roots cleanly.

How to choose

Use gritty, free-draining mixes.
Adjust proportions for species and climate.
Sieve out fine dust.
Repot with mesh over drainage holes.

Common questions

Can I use normal potting soil for bonsai?

It usually holds too much water and compacts, causing root problems. Use a gritty bonsai mix.

What is akadama?

A Japanese baked clay granule used in bonsai soil to hold water and air.