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Rockwool

Grodan Rockwool Cubes
Grodan

Rockwool Cubes

Grodan Rockwool Cubes are ideal for raising seedlings and cuttings. Clean, light..
From £0.06
Grodan Vital Rockwool Slabs
Grodan

Vital Rockwool Slabs

Grodan Vital is highly versatile and perfect for growing tomatoes, sweet peppers..
From £4.00
Grodan 90 Litres of Grow Cubes
Grodan

90 Litres of Grow Cubes

Grodan Rockwool Mini Grow Cubes (also known as Cellmax) are great for use as a g..
From £69.95
Grodan Hugo Block
Grodan

Hugo Block

Grodan Hugo Gro-Blocks can support many species throughout their lifecycle. The ..
From £2.00

If you’re looking for a soilless substrate for seed starting, stem rooting or hydroponics, consider using rockwool growing medium. This wool-like material is made by melting basaltic rock and spinning it into fine fibers. Rockwool for plants is then formed into easy-to-use cubes and blocks. But is rockwool safe to use for the production of food? Formed from natural materials, Rockwool contains no harmful chemicals. It's safe to use as a rooting medium and substrate material for plants. Due its physical structure, rockwool drains excess water quickly. Yet, it retains small amounts of water near the bottom of the cube.

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