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

The Grodan Delta Mini-Block MM 40/40 is a high-quality stone wool growing block designed for seed germination, rooting cuttings and young plant propagation. Each block measures 40 x 40 x 40 mm and comes in a convenient strip of 15 pieces.

According to Grodan, MM blocks offer excellent uniformity, optimal firmness and a balanced water-to-air ratio. Their consistent stone wool structure supports even moisture distribution and provides favourable conditions for healthy root development.

The Mini-Blocks are suitable for hydroponics and other growing systems. Once the young plants have developed sufficient roots, the blocks can be transplanted directly into larger Grodan growing blocks with a compatible 40 mm opening.

Benefits

• 15 stone wool blocks per strip
• Uniform structure and excellent firmness
• Balanced water-to-air ratio
• Suitable for seeds and cuttings
• Supports uniform root development
• Compatible with larger Grodan blocks featuring a 40 mm opening
• Ideal for hydroponic growing systems

Product Specifications

• Brand: Grodan
• Type: Delta Mini-Block MM 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
• Application: Germination, rooting cuttings and young plant propagation