Grodan Delta 4G 75 mm Cube No Hole 384 pcs

Description

GD4G – Grodan Delta 4G 75 mm Cube No Hole (384 pcs)

Compact 75 mm Delta block, solid with no hole.

The Delta 4G is the compact 75 mm block in the Grodan Delta propagation range. This version has no hole, so it suits direct sowing of seed and growers who want a solid block. Like all Delta blocks, it has a vertical fibre structure that spreads water and nutrients evenly and encourages roots to grow through the whole block. The grooves underneath help keep air and water at the base. Delta blocks are made for easy initial wetting and simple control of water content. Grodan stone wool is naturally slightly alkaline, so soak at pH 5.5 to bring the block to approximately pH 6.2. Use a balanced nutrient solution for soaking rather than plain water. Once rooted, place the block on a Grodan slab or a larger block.

Key specs

• Size: 75 mm cube format
• No hole
• Vertical fibre structure, grooved base
• Use: propagation and early growth
• 384 blocks per carton