Akadama Ibaraki HQ is a high-quality substrate specifically designed for growing bonsai. This product, mined from volcanic quarries on the island of Honshu in Japan, is composed of reddish-brown clay granulate, known for its exceptional physical and chemical properties.


Key Features

• Excellent Aeration and Drainage: Akadama provides a perfect balance of water, air and nutrients, promoting healthy bonsai root development. Its porous structure allows optimal drainage, preventing root rot.
• Nutrient Holding Capacity: This substrate has a high capacity to retain nutrients, releasing them gradually according to the plant's needs. This is especially useful for ensuring uniform nutrition over time.
• pH Stability: Akadama acts as a buffer against pH fluctuations, maintaining an ideal environment for root growth and preventing soil acidification.
• Moisture Indicator: Another unique feature is its ability to change color based on the presence of water, helping growers know when it is the right time to water.

Method of Use

• Mixed with Potting Soil: For best results, it is recommended to mix Akadama with a bonsai-specific potting soil in a 50/50 ratio. For conifers, the ideal proportion is 33% Akadama and 67% potting soil.
• Pure Use: It is possible to use Akadama as a sole substrate, but this requires careful nutrient management. Organic fertilizers are recommended for effective and long-lasting nutrition.