Professional products Repotting substrates Forest X
Professional coarse-structure substrate for long-cycle repotting.
Forest X is the Arber professional substrate for repotting long-cycle outdoor plants. It combines Baltic blonde peat 0–40 mm, Italian pumice 3–8 and 6–14 mm, and mature green compost. Coarse structure, consistent drainage, pots from Ø 14 cm and above.
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Features
Forest X is the Arber professional substrate for repotting outdoor plants that remain in containers for long cycles. The formula combines Baltic blonde peat 0–40 mm with Italian pumice 3–8 and 6–14 mm. This coarse structure maintains drainage and aeration even after many months on the bench.
The addition of high-quality green compost supports structural stability and cation exchange capacity over time. PG Mix starter fertiliser supports the re-establishment phase, and the wetting agent helps with the first rehydration of the root zone. Slightly acid pH, 5.0–6.0: suitable for most outdoor plants.
Selected peat from the Baltic countries, consistently from the same fields, to guarantee quality continuity batch after batch. Italian pumice from a consolidated supply chain quarry.
Technical specifications
| Structure | Coarse |
|---|---|
| Granulometry | 0-40 mm |
| pH | 5–6 |
| EC | 1.1–1.4 mS/cm |
| Dry bulk density | 160–196 g/L |
| Recommended pot | Ø from 14 cm up |
Why choose it
- Coarse structure: maintains porosity and aeration even after 18+ months, reducing the risk of root asphyxia in containers.
- Italian pumice 3–8 and 6–14 mm: resistance to settling and reduced compaction over time, essential for long cycles.
- High-quality green compost: durable cation exchange capacity over the long cycle.
- pH 5–6 and EC 1.1–1.4 mS/cm: suitable for repotting outdoor ornamentals in containers.
- Integrated starter fertiliser: the plant is ready to grow from the moment of potting.
Composition
- blonde peat 0–40 mm
- wood fiber
- pumice 3–8/6–14 mm
- green compost
Illustrative proportions of structural components.
Additional components
- wetting agent
Fertilisation
Base fertilisation
Available pack sizes
| Format | Units / pallet |
|---|---|
 70 L | 42 |
 Big Bag | 1 |
Substrates for potted plant growers
View all Arber substrates for this crop type, with selection criteria and technical comparison.
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