


Kanuma Medium Grain 3-6mm - 3L
Kanuma is a lightweight and porous volcanic substrate of Japanese origin, ideal for cultivating bonsai of acid-loving species such as azaleas, camellias, and rhododendrons. Its main feature is its ability to retain moisture without compromising drainage, ensuring a balanced environment for healthy root development.
With a naturally acidic pH, Kanuma is perfect for plants that require acidic soils. Its airy structure also prevents compaction and promotes excellent root aeration, helping to avoid root rot and supporting vigorous growth. It can be used on its own for acid-loving species or mixed with other substrates, such as Akadama, to suit different types of bonsai. It is also effective when used as a drainage layer in the pot, helping to maintain a good balance between moisture and airflow.