It is a 100% natural inert volcanic rock very light and porous substrate for soilless crops: tomato, lettuce, strawberry
Benefits :
• Lighten the floor.
• Reduce the appearance of weeds.
• Good substrate for cuttings.
• Promotes the passage of water.
Technical characteristics :
Porosity: 30 to 60%
Water absorption: 20 to 30%
Caliber 2 to 3cm
water retention: 8 to 17%
high content of silica, phosphorus, calcium and trace elements
On request
On request
In stock