Fuji Sand – natural volcanic substrate for bonsai and other plants

Fuji Sand is a pure volcanic material, extracted from the Fuji mountain area (Japan), used by Japanese growers in traditional bonsai mixes. Its granular appearance and dark gray color provide not only an aesthetic texture but also excellent stability and drainage for roots.

🌋 Botanical and physical characteristics

• Origin: volcanic (Fuji area, Japan)

• Composition: naturally crushed solidified lava

• Texture: hard, irregular, porous granules

• Color: dark gray to black, elegant natural look

• pH: neutral to slightly acidic

• Size: 2-5 mm

🌱 Advantages in bonsai cultivation

• Provides excellent drainage and constant aeration for roots

• Does not decompose over time, maintaining substrate structure stability

• Offers appropriate weight to secure bonsai in pots

• Reduces the risk of root rot and maintains root system health

• Can be used as a drainage layer or mixed with Akadama, Kiryuzuna, or Karu Ishi

🌿 Extended use – not just for bonsai

Although primarily designed for bonsai cultivation, Fuji Sand can also be used with excellent results for other types of plants:

• Cacti and succulents: for a very aerated substrate and quick drainage

• Epiphytic orchids (Hoya, Dendrobium, Oncidium): for added stability and drainage

• Indoor tropical plants (Philodendron, Monstera, Alocasia, Anthurium): mixed with peat and coconut fiber to prevent substrate compaction

• Carnivorous plants: in small amounts, as a drainage material in acidic substrates

💡 Usage recommendations

• Can be used as a drainage layer or mixed with other substrates in proportions of 10–40%, depending on the plant.

• Can also be applied as a decorative layer on the pot surface, providing a natural, clean, and tidy appearance.

Note: Fuji Sand is a 100% natural product, without artificial additives. Granulation and color may vary slightly depending on the volcanic origin batch.

The substrate is sold in bulk, in 2l bags (packaged in a greenhouse).

Note for international orders: Adding soil products to international orders will increase your shipping costs due to extra weight charges. For each piece you will need to pay an extra cost of 10 Ron (~2 Eur).