Rockwool Propagation Cubes Free Shipping Easy to Use: Spray directly

Easy to Use: Spray directly onto plants during the early flowering phase for quick absorption and action without the need for mixing or complicated application processes

Supports Indoor and Outdoor Use: Versatile enough for greenhouses

Take control of your plant’s growing conditions with the Bluelab pH Pen

EC fans cannot be operated without an appropriate EC fan controller

Rockwool Propagation Cubes Free Shipping Easy to Use: Spray directlyRockwool is produced from basalt rock, which is melted and then spun into thin fibres. These are mixed with a binding agent and compressed into slabs that are cut into the smaller cubes used for propagation. Fibres in Grodan have been spun in only one direction but Cultilene's Cultiwool propagation cubes have fibres that have been spun in two directions. This gives the cubes great flexibility and great strength when they're wet so they won't go all