Seed Raising Media - Stonewool Grow-Cubes
Stonewool, also known as rockwool, is a popular seed raising media in hydroponics. Rockwool grow cubes have the advantage of holding moisture and oxygen very well, while also draining any excess moisture. Rockwool does not inhibit root growth and is naturally sterile. Our rockwool grow cubes from Grodan are available in the following sizes; 40mm, 75mm, 100m, 150mm. Larger rockwool trays and slabs are also available.