Cultiwool Prime Growing Blocks
Cultiwool Prime Growing Blocks, made with plan-based binder and horizontal fibre, for stable moisture distribution and uniform plant growth.
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Cultiwool Prime Slabs
Horizontal Fibre Slab for Maximum Water BufferingCultiwool Prime Slab is developed for growers who require a stable and forgiving root zone. Its horizontal fibre structure distributes and retains water evenly, creating consistent moisture conditions and reducing the impact of irrigation fluctuations. Cultiwool Prime is made with a natural plant-based binder, helping to create a stable root zone that supports strong and uniform plant development.
Stability and Buffering for Reliable Crop Growth
Manufactured with natural binder technology, Sirius delivers a uniform substrate with enhanced water-holding capacity and controlled air balance. This results in steady nutrient availability, reduced stress in the root zone, and reliable plant development—particularly in situations where irrigation consistency is critical.
Advantages
All you need to know about Cultiwool Prime Slab
Horizontal fibre orientation – Promotes even water spread across the slab
Increased water retention – Supports longer intervals between irrigation cycles
High buffering capacity – Minimizes risk of dry spots or over-irrigation
Stable root environment – Reduces plant stress and variability
Natural binder technology – Combines performance with reduced environmental impact
Durable structure – Maintains performance throughout the full crop cycle
Available Sizes & Customization
Cultiwool PR Slab Sirius is available in a range of sizes to match different cultivation systems and crop requirements. Growers can choose whether to include pre-cut plant holes and define the number and positioning based on their specific setup. In addition to the standard options below, customized slab dimensions are available upon request.
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1000 × 150 × 75 mm
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1000 × 150 × 100 mm
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1200 × 150 × 75 mm
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1200 × 150 × 100 mm
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1330 × 150 × 75 mm
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1330 × 150 × 100 mm
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1000 × 200 × 75 mm
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1000 × 200 × 100 mm
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1200 × 200 × 75 mm
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1200 × 200 × 100 mm
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1330 × 200 × 75 mm
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1330 × 200 × 100 mm
PR Slab Sirius is ideal for growers seeking maximum stability in the root zone, supporting consistent crop development and reducing sensitivity to irrigation variations.
Downloads
Download here the product sheet of Cultiwool Prime Slab
Cultiwool Prime Starter Plugs
Cultiwool Prime Starter Plugs, made with natural binder, ensure uniform germination and fast root development through a consistent moisture and air balance.
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Original Growing Blocks
High-performance stone wool growing blocks delivering stable water management, strong root development, and consistent crop performance for professional greenhouse cultivation.
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Original Growing Slabs
Proven stone wool slabs designed for uniform water distribution, stable structure, and reliable root zone control, ensuring predictable yields and crop uniformity throughout the cultivation cycle.
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Original Starter Plugs
Reliable stone wool Starter Plugs engineered for uniform water distribution, optimal oxygen balance, and consistent early root development, supporting predictable propagation and smooth transplanting.
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