Kousitu Kanumatuti Kanuma Japanese bonsai soil, a yellow-tan acidic volcanic substrate for Satsuki Azaleas.

Japanese Kanuma 3-6mm - 16L

3-6mm
$45.00
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Kousitu Kanumatuti Kanuma Japanese bonsai soil, a yellow-tan acidic volcanic substrate for Satsuki Azaleas.
  • Kousitu Kanumatuti Kanuma Japanese bonsai soil, a yellow-tan acidic volcanic substrate for Satsuki Azaleas.
  • Small grade kanuma bonsai soil aggregate with optimal acidic pH yellow-tan colour
  • kanuma-tsuchi japanese volcanic substrate 3-6mm size close up great for acid-loving loving plants
Japanese Kanuma 3-6mm - 16L

Japanese Kanuma 3-6mm - 16L

$45.00
Small

Premium Japanese Kanuma

The Essential Bonsai Soil Substrate for Acid-Loving Trees

Unlock the full potential of your Satsuki Azaleas and Camellias with Kanuma, the world-renowned volcanic substrate sourced exclusively from the Kanuma region of Japan.  This lightweight, acidic mineral soil is the secret behind the vibrant blooms and healthy growth of acid-loving bonsai species.

Key Features & Benefits:

  • Naturally Acidic pH:  Perfectly tailored for Satsuki Azaleas, Camellias, Gardenias, and Blueberries.  It maintains the low-pH environment these plants need to thrive.
  • High Porosity & Moisture Retention:  Kanuma acts like a sponge, holding water while maintaining essential air pockets. This ensures roots stay hydrated without being smothered.
  • Encourages Fibrous Root Growth:  Its soft, brittle texture allows fine feeder roots to penetrate the aggregate easily.
  • Visual Moisture Indicator: Kanuma changes color significantly when wet (turning from light tan to a deep yellow), making it easy for growers to tell exactly when it’s time to water.
  • Lightweight Composition: Ideal for large specimen trees, Kanuma keeps the overall weight of the bonsai pot manageable without sacrificing stability

Recommended Usage:

  • Pure (100% Kanuma):  This is the standard practice for Satsuki Azaleas.  It provides the maximum acidity and aeration required for their delicate root systems.
  • Acidic Blend:  Mix with Akadama or Kiryuzuna (typically a 60/40 ratio) for other acid-loving shrubs, trees, cacti and succulents that require slightly more weight and stability.

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