Grodan Rockwool Wrapped Slab 900 X 300 X 75MM 

Grodan rockwool slabs are made to high standards and also created sustainably. Rockwool slabs are used as growing media for:

• Raising seeds and growing cuttings
• Re-planting from Rockwool cubes
• Vertical wall gardens

Length : 90CM

Width : 30CM

Thickness : 7.5CM

The slab should be washed with warm pH adjusted waterset at 5.5 before use and should kept moist but not saturated onceseeds/cuttings have been planted.

Over watering can inhibit root development as well asmaking the plant more susceptible to root rot.