Grodan Rockwool Cubes (4 X 4 X 4 Inches) 6 Pack With Holes

Great price, for a great block, from a great company.

having some issues with growing success. some dead plants. but, new at whole process of hydro, product does well, and was as advertised

The perfect medium for mid-sized plants grown in a hydroponics system. Root systems love rockwool cubes, and if used with Grodan seedling cubes (1-1/2" x 1-1/2 " ) the combo cannot be beaten. Convenience, economy, and practicality are all combined within the Grodan Rockwool cubes.

Thanks again Gordan. This product works so much better then those dehydrated dirt piles. Thanks for providing such a resourceful gardening supply.

Put em on top of some hugos on top of some coco core & build a big root pyramid

Ease of use, fast shipping

this product is great, but STAR HYDRO mearly stuffed them in an envelope and mailed them. c'mon, really....they were totally destroyed when they arrived. i say again, this is a great product, i use them every year....but buy them elsewhere.[EDIT] they emailed and said they would reship, i'll update when replacement arrives.

have to wait for warm weather to start my hydroponics' system to grow tomatoes and strawberries