Hydroponic Rockwool 40 x 40 x 40 Grow Cubes - 18 pack

Brunnings Hydroponic Rockwool Grow Cubes are very simple to use and are the same product that professional growers have been using for years. The Rockwool Grow Cubes are derived from basalt, a natural volcanic rock. Simply soak the required amount of grow cubes in water and then drop a seed (or a pinch of seeds depending on varieties) directly into the pre-drilled hole. Sit in a part sunny and protected position and watch them grow.