In StockRockwool Slabs
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Description
Cultiwool Rockwool Slabs are a top-tier growing medium designed specifically for hydroponic and indoor cultivation systems. These rockwool slabs are perfect for commercial and home growers alike, offering the ideal balance of moisture retention, aeration, and nutrient distribution. Whether you’re growing vegetables, herbs, or flowering plants, Cultiwool Rockwool Slabs provide a stable, sterile, and reliable foundation for optimal plant growth.
With its fibrous structure, Cultiwool Rockwool allows roots to expand freely while maintaining excellent air and water flow, making it an indispensable choice for serious indoor and hydroponic gardeners.
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Exceptional Water Retention: Cultiwool Rockwool Slabs are engineered to hold significant amounts of water, ensuring your plants have consistent access to moisture without the risk of waterlogging.
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Optimised Root Aeration: The fibrous structure of the rockwool provides excellent airflow to the root zone, supporting vigorous root development and reducing the risk of root rot.
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Sterile Growing Medium: Cultiwool Rockwool Slabs are naturally sterile, offering a pathogen-free environment that reduces the risk of diseases and pests, keeping your plants healthy and thriving.
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pH Neutral: These rockwool slabs are pH neutral, allowing for easy control and management of the growing environment and ensuring that plants receive nutrients efficiently without pH fluctuations.
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Sustainable & Eco-Friendly: Made from natural basalt rock, Cultiwool Rockwool Slabs are an environmentally friendly choice that offers superior performance without compromising sustainability.
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Customisable Sizes: Available in various sizes, these slabs can be easily tailored to fit your growing setup, whether you’re working with flood-and-drain, drip irrigation, or other hydroponic systems.
Benefits for Hydroponic & Indoor Growing:
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Improved Root Development: The fibrous nature of the rockwool provides plenty of room for roots to expand while maintaining proper moisture and aeration, ensuring optimal growth and plant health.
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Low Maintenance: With excellent water retention and aeration properties, Cultiwool Rockwool Slabs reduce the need for frequent watering and nutrient management, allowing for a more efficient and hands-off growing process.
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Ideal for Various Plants: Suitable for a wide range of plants, from vegetables and herbs to flowers and ornamentals, Cultiwool Rockwool is adaptable to different plant species and growth stages.
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Excellent for Hydroponic Systems: These rockwool slabs are designed to work seamlessly in hydroponic systems, including deep water culture, ebb and flow, and drip irrigation, providing a consistent growing medium for indoor setups.
Why Choose Cultiwool Rockwool Slabs?
Cultiwool is renowned for its high-performance, reliable products, and their rockwool slabs are no exception. Ideal for both beginner and experienced hydroponic gardeners, Cultiwool Rockwool Slabs offer the perfect combination of water retention, aeration, and support for healthy root systems and thriving plants.
With their sterile composition, customisable sizes, and adaptability to various hydroponic systems, Cultiwool Rockwool Slabs are an essential component for most hydroponic indoor growing setups. Plus, their long lifespan and reusability make them a cost-effective and sustainable choice, allowing you to grow with confidence, cycle after cycle.
Key facts
| Type | Rockwool growing slab |
|---|---|
| Lengths | 100 cm and 130 cm |
| Made from | Basalt rock |
| Structure | Fibrous: holds water while letting air reach the roots |
| Sterile | Yes, a clean start free of pests and disease |
| Works with | Drip irrigation, ebb and flow, and other hydroponic systems |
| Brand | Cultilene |
| Sizes | 100cm, 130cm |
| Category | Rockwool Slabs |
How to use
Lay the slab on a level surface or in a tray that drains, and soak it with nutrient solution before planting. Then set rooted plants in rockwool transplanting cubes on top, so the roots grow down into the slab.
Feed through drippers: see dripper systems. Check the pH and EC of the feed and the run-off with a meter. More slabs are in rockwool slabs.
Questions
What sizes do the slabs come in?
100 cm and 130 cm long.
How do I start plants in a slab?
Root them in propagation cubes, move them into transplanting cubes, then stand the cubes on the soaked slab. The roots grow down into it.
Growers’ guides
- pH and EC Meters: How to Measure, Calibrate and Look After ThemWhat pH and EC tell you, the targets nutrient makers publish, which meter to choose, and how to calibrate it and look after the probe.
- Coco Coir Guide: Choosing, Feeding and Reusing CocoWhat coco coir is, the coco mixes worth buying, how it compares with clay pebbles and rockwool, and how to feed and reuse it.




