Grodan 36x36x40mm, planting cube without hole

Rockwool is a basalt wool treated for hydroponic growing with excellent properties.

This version of the Grodan cube with dimensions 36x36x40mm has no hole in the middle.

Features:
- hydrophilic material excels at retaining water and keeping roots optimally moist
- excellent water/air ratio promotes the development of a rich root system
- inert growing medium does not affect the EC of the nutrient solution
- superior stable substrate increases pH only slightly
- maximum control over fertilization, economical water consumption, excellent nutrient uptake
- Rockwool Grodan provides a clean and healthy environment for seedlings, cuttings and mature herbs
- does not support mould formation or the presence of pests
- compatible with many irrigation systems including NFT, EBB
- small cubes are also suitable for all plastic greenhouses for young herbs
- Grodan cubes are designed for multiple uses