Professional products Repotting substrates Forest FR Type 3
Professional substrate with high pumice content for medium-to-long cycle repotting.
Forest FR Type 3 combines Baltic blonde peat 7–20 mm and 20–40 mm with Swedish pumice for consistent aeration across medium-to-long cycles in containers. Suitable for pots from Ø 18 cm and above.
Reply within 1 working day from your local area agent.
Features
Swedish pumice, sourced from a consolidated supply chain, forms the structural backbone of the mix. It provides long-term stability and low compaction, even after repeated irrigation cycles and rainy seasons. The PG Mix starter fertiliser supports the re-establishment phase, while the wetting agent helps the first rehydration of the root zone. The pH is slightly acid, 5.0–6.0, suitable for most outdoor plants.
Selected peat from the Baltic countries, extracted consistently from the same fields season after season, ensures batch-to-batch quality continuity. 30 years of selected supply chain and over 7 million m³ of substrates produced since 1996.
Technical specifications
| Structure | Medium-Coarse |
|---|---|
| Granulometry | 7-20 / 20-40 mm |
| pH | 5–6 |
| EC | 0.8–1.5 mS/cm |
| Dry bulk density | 230–240 g/L |
| Recommended pot | Ø from 18 cm up |
Why choose it
- Medium-coarse structure: drainage and aeration for medium-to-long container cycles.
- Blonde peat 7–20 mm and 20–40 mm with Swedish pumice: balanced structural matrix.
- pH 5–6 and EC 0.8–1.5 mS/cm: suitable for outdoor pot ornamentals and shrubs.
- Base fertilisation with potassium boost: suitable for plants in the flowering phase.
- Dry bulk density 230–240 g/L: certified structural load-bearing capacity for large pots.
Composition
- blonde peat 7–20 mm
- blonde peat 20–40 mm
Illustrative proportions of structural components.
Additional components
- wetting agent
- pumice
Fertilisation
Base fertilisation
Available pack sizes
| Format | Units / pallet |
|---|---|
 70 L | 42 |
 250 L | 18 |
 Big Bale | 1 |
Substrates for potted plant growers
View all Arber substrates for this crop type, with selection criteria and technical comparison.
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