Description:

• ROCKAL Rock Grow commercial grade stone wool grow slab is manufactured from high-grade raw material.
• Wetting agent ensures nutrients are immediately plant available.
• High fiber density makes better use of water and fertilizers while allowing dry back.

Features

• High-density material offers ample support and water retention for plants of any size, and ensures that the blocks will maintain their shape during handling.
• Sterile, UV-blocking wrapper protects roots and fits tightly to keep water and nutrients in the root zone.
• Specially-developed wetting agent provides efficient, uniform saturation and optimized nutrient uptake with a water holding capacity of 85-95%.
• Pre-cut squares ensure perfectly uniform, repeatable spacing for grow blocks-no measuring or guesswork required.
• Rockal Blocks are manufactured from at least 70% recycled material.

Advantages:

• Comfort in handling.
• Preventing algae growth.
• Preventing roots and diseases from moving easily from slab to slab.
• Minimizing evaporation.
• Enabling full saturation of the slabs before use.
• Controlling/directing the water-run off from the slabs.