Enhance Your Hydroponic Garden with Rockwool Crop Box Slabs

Improve your hydroponics system's efficiency and boost crop yields with this pack of 4 Rockwool Crop Box Slabs. Each slab measures 370 x 550 x 150mm and offers optimal water retention and air circulation for your plants, ensuring uniform growth and enhanced root development.

Features and Benefits

  • Uniform emergence and plant development: The Rockwool Crop Box Slabs provide a consistent and stable environment for plants to grow uniformly.
  • Excellent root growth throughout the substrate: With the ideal air and water-holding capacity, these slabs offer the perfect environment for healthy, strong root systems.
  • Uniform WC and EC distribution: Rockwool ensures even distribution of water content (WC) and electrical conductivity (EC) throughout the slabs for balanced plant nourishment.
  • Direct control and refreshment of EC due to inert material: Rockwool's nonreactive nature allows for precise control and adjustment of EC levels, promoting optimal plant health and growth.
  • Sterile at manufacture for optimal plant health and vigour: The Rockwool manufacturing process ensures a clean, sterile environment for plants to thrive free of disease and pests.
  • No buffering required before use: The Rockwool Crop Box Slabs are ready to use straight out of the packaging, streamlining the setup process.
  • Quality manufacture practices under ISO9001: All plugs and blocks are produced to meet high standards of quality and performance, ensuring consistent results and satisfaction.

How to Use

  1. Inspect the Rockwool Crop Box Slabs for any damage or defects upon arrival.
  2. Place the slabs in your hydroponic growing environment, ensuring they are adequately spaced and receive sufficient light.
  3. Plant your seedlings or seeds directly into the slabs, following the specific planting instructions for your chosen plant species.
  4. Monitor and adjust the water content and EC levels as needed to maintain optimal growing conditions for your plants.

Aqua Gardening Suggests These are Best For

These Rockwool Crop Box Slabs are perfect for hobbyists and professional hydroponic gardeners seeking a reliable and efficient growing medium for their plants. They are suitable for a broad range of plant species, including vegetables, flowers, and herbs, and can be easily adapted to different hydroponic growth systems and setups.

Notes from Aqua Gardening

  • Keep out of reach of children and pets.
  • Dispose of used Rockwool slabs responsibly, following local recycling and waste disposal guidelines.
  • Although Rockwool is sterile at manufacture, always inspect your growing environment for signs of pests or diseases and take appropriate action if needed.


What are the dimensions of each Rockwool Crop Box Slab?

Each Rockwool Crop Box Slab measures 370 x 550 x 150mm.

How many slabs are included in the 4 Pack?

The 4 Pack includes a total of 4 Rockwool Crop Box Slabs.

What are the benefits of using Grodan Rockwool for my plants?

Grodan Rockwool offers numerous benefits such as uniform emergence and plant development, excellent root growth, uniform water content (WC) and electrical conductivity (EC) distribution, direct control and refreshment of EC due to inert material, sterile manufacturing for optimal plant health and vigour, and no buffering required before use. Additionally, it adheres to quality manufacturing practices under ISO9001.

Is the Rockwool Crop Box Slab suitable for all types of plants?

Yes, Grodan Rockwool provides an ideal substrate air/water holding ratio, which is suitable for a wide variety of plant types. It promotes overall optimum yields and product quality.

Do I need to buffer the Rockwool Crop Box Slabs before using them?

No, buffering is not required before using these slabs. The manufacturing process ensures that they are ready to use straight out of the packaging.

Are the Rockwool Crop Box Slabs eco-friendly?

Grodan Rockwool is made under ISO9001 quality manufacturing practices, ensuring its environmental impact is minimal. It is a sustainable choice for plant growth.

Can I reuse the Rockwool Crop Box Slabs for multiple grow cycles?

Although it is possible to reuse the slabs, it is generally recommended to use new Rockwool Crop Box Slabs for each grow cycle to ensure the best possible plant growth and health.

Still Unsure if This Product is Right for You?

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(SKU: 125742)

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Dimensions: 0.38m (Length) x 0.56m (Width) x 0.60m (Height)

Weight: 6.0kg

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