Grodan Grow-Cubes, 5.3 cu ft (loose in box)

Loose-Fill Stonewool Crouton Media in Bulk Box, 5.3cu ft

Grodan stone wool is made from molten rock spun into fine fibers and compressed into cubes, blocks, or slabs, with graduated sizes so seedlings can move from cubes to blocks to slabs as they grow.

This 5.3 cu ft (150 L) box of loose mini-cubes consists of small stonewool croutons that stack to create air pockets, offering a lightweight alternative to regular potting mix.

Key Features & Benefits

• Loose-Fill, Non-Bagged Format — packaged as loose mini-cubes in a box
• Stonewool Crouton Structure — small cubes stack to create air pockets throughout the pot
• Difficult to Overwater — good drainage keeps roots from sitting in excess water
• Lasts the Life of the Plant — no need to change out media during the grow

Who Should Use Grodan Grow-Cubes

Suited to growers new to hydroponics who want an easy-to-use, lightweight loose-fill media with package instructions included.

About Grodan

Grodan manufactures stone wool growing media, including cubes, blocks, and slabs engineered for consistent water and root development.

Frequently Asked Questions

How is this size packaged?

Loose, non-bagged, in a box.

What is the volume?

5.3 cu ft (150 L).

What growing systems does it work with?

Ebb & flow, top watering, or a watering can.

Do the cubes need to be replaced?

No, they last for the life of the plant.