Grodan Improved Mini-Block 40/40 – 15 Propagation Blocks

The Grodan Improved Mini-Block 40/40 is a professional stone wool propagation block designed for seed germination, rooting cuttings and young plant propagation. Each block measures 40 x 40 x 40 mm and is supplied in a convenient strip of 15 pieces.

The Grodan Improved product line combines an optimised fibre structure with advanced wetting agent technology. This technology is designed to provide uniform distribution of water and nutrients while maintaining a stable balance between water and air in the root zone.

The improved water distribution supports fast and uniform root development. Water content (WC) and electrical conductivity (EC) can be managed precisely, making these propagation blocks suitable for professional cultivation and advanced crop steering strategies.

Once the young plants have developed sufficient roots, the Mini-Blocks can be transplanted directly into larger Grodan growing blocks featuring a compatible 40 mm opening.

Benefits

• 15 professional stone wool blocks per strip
• Optimised fibre structure with advanced wetting agent
• Uniform distribution of water and nutrients
• Supports fast and consistent root development
• Balanced water retention and root-zone aeration
• Precise control of water content (WC) and EC
• Suitable for seeds, cuttings and young plants
• Compatible with larger Grodan blocks featuring a 40 mm opening

Product Specifications

• Brand: Grodan
• Product line: Improved Gro-Block
• Type: Mini-Block 40/40
• Material: Stone wool
• Dimensions per block: 40 x 40 x 40 mm
• Planting hole: 6 x 15 mm
• Contents: 15 blocks per strip
• Manufacturer article number: 340847
• Application: Germination, rooting cuttings and professional plant propagation