Akadama Double Line
Premium hard Japanese Akadama from Ibaraki: a volcanic clay medium for bonsai, succulents, cacti and orchids. Absorbs and holds water while draining freely, in durable 1-3mm and 3-6mm grades.
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Double Line Akadama is a premium Japanese volcanic clay growing medium, widely used for bonsai, succulents, cacti, orchids, and other potted plants that benefit from excellent drainage, aeration, and moisture control.
Produced from hard red jade soil from Ibaraki, Japan, Akadama is known for its fresh auburn colour, rounded particle shape, and ability to absorb and hold water while still allowing excess moisture to drain freely. This makes it an ideal ingredient for creating free-draining, breathable growing mixes that support healthy root development.
Double Line Akadama is harder and more durable than softer grades, making it especially suitable for use in bonsai mixes, succulent blends, cactus media, top dressing, and decorative paving. Its slightly acidic to near-neutral pH and clean mineral structure make it a reliable choice for a wide range of plants.
Available in 1L, 2L, 3L, 4L, 6L and 13L packs, with two practical grade options: 1-3mm and 3-6mm.
Key benefits:
- Premium hard Japanese Akadama
- Excellent water retention without becoming overly wet
- Promotes drainage and airflow around the root zone
- Helps support strong, healthy root growth
- Suitable for bonsai, succulents, cacti, orchids, and potted plants
- Great as a soil mix ingredient, top dressing, or decorative surface layer
- Rounded particles help create a balanced structure for water storage and drainage
- Clean mineral growing medium with no harmful bacteria
Grade guide:
1-3mm Akadama is best suited for smaller pots, fine bonsai mixes, seedlings, propagation, succulents, and plants with finer root systems. It is also useful when you want a smoother, finer top dressing.
3-6mm Akadama is ideal for larger bonsai, succulents, cacti, orchids, potted plants, and chunkier free-draining mixes. It can also be used as a decorative top layer.
How to use:
Mix Akadama with other growing media such as pumice, scoria, bark, perlite, or other mineral components to create a custom free-draining blend. It can generally be used at around 30-35% of a potting mix, depending on the plant type and the level of drainage and moisture retention required.
For bonsai and succulents, combine with other mineral aggregates to improve structure, airflow, and long-term drainage. For decorative use, apply as a clean top dressing over the surface of the pot.