Begrow 4" x 4" x 2.6" Stone Wool Cubes (288pcs/Case)

The Begrow stone wool cube is designed for seedling growth. You can use it both for direct seed planting and for transplanting. If you choose the second variant, you should use the stone wool plugs for seeds germination. Then you should insert the plugs with already grown sprouts into special holes on the upper layer of the cubes. We produce Begrow cubes from corrugated, hydrophilic stone wool with high density. It helps to preserve the substrate rigidity and mechanical stability even after getting wet. At the same time, the structure with vertical fibers and drainage channels in the lower layer of our cubes allow you to grow seedlings in low soil moisture conditions. Our stone wool cubes help you to grow seedlings with a healthy root system featured by balanced vegetative and generative growth. It also allows you to easily manage the process of plant growth. Product Specifications Average Fiber Diameter: 6 µm Full Immersion in Water: < 25 Seconds Recommended Relative Humidity: 40 - 85% Organic Matter: 1 - 4% Density: 80 kg/m³ +/- 10% Pressure Force at 30%: 6 kPa Recovery Level: > 98% at 6 kPa Porosity: > 95% Fiber Structure: Vertical