Rockwool is a high-performance hydroponic medium made from spun basalt rock. It retains water efficiently while keeping air pockets around roots.

Rockwool comes in cubes, slabs, and blocks suitable for propagation and full-cycle growth. It provides consistent results in controlled environments.

Use with hydroponic systems, trays, and nutrient solutions for best results.

-15%
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Cultiwool CRB Trays

Price range: £8.49 through £156.99 Inc VAT
-60%
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Cultiwool Rockwool Cubes

Price range: £0.40 through £142.99 Inc VAT
-7%
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Cultiwool Slabs

Price range: £125.99 through £149.99 Inc VAT
-17%
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Grodan – Rockwool Cubes

Price range: £0.45 through £143.49 Inc VAT
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Grodan – Rockwool SBS Trays

Price range: £0.10 through £190.00 Inc VAT

Does Rockwool affect pH?

Yes, it initially has a high pH and should be soaked/buffered before use.

Can I propagate in Rockwool?

Yes, cubes and plugs are perfect for cuttings and seedlings.