Grodan Startblock 28mm

384 stuks per doos, 28mm gat, 75x75x65mm

The Grodan Startblock with a 28mm hole is a high-quality stone wool (rockwool) propagation cube designed to provide an optimal environment for seed germination and cutting propagation. Here’s a comprehensive overview of its features and usage:

Product Specifications

• Dimensions: Each cube measures 7.5 x 7.5 x 6.5 cm.

• Hole Diameter: 28 mm, suitable for inserting starter plugs like Grodan A-OK or Macro plugs.

• Material: Made from stone wool, known for its excellent water retention and air porosity.

• Packaging Options: Available in boxes of 384 pieces or smaller packs of 12 pieces.

Key Features

• Optimal Root Development: The uniform fiber structure ensures consistent water and nutrient distribution, promoting healthy and uniform root growth throughout the block.

• Air and Water Balance: Stone wool’s high porosity provides an ideal balance between water retention and air circulation, crucial for root health.

• pH Considerations: Stone wool has a naturally high pH (~8). It’s recommended to pre-soak the blocks in a nutrient solution adjusted to a pH of 5.1–5.5 to stabilize the medium.

• Compatibility: The 28mm hole is designed to snugly fit Grodan A-OK Starter Plugs™, facilitating easy transplanting once roots are established.

✅ Summary

The Grodan Startblock with a 28mm hole is a reliable choice for both amateur and professional horticulturists seeking a consistent and efficient propagation medium. Its design facilitates optimal root development, and its compatibility with standard starter plugs makes it a versatile component in hydroponic and soil-based cultivation systems.

If you need further assistance with sourcing these blocks or have questions about their usage, feel free to ask!