Grodan Rockwool Delta Cubes

Once seeds or cuttings are rooted in a propagation cube, transplant them to a Grodan Delta cube. 3″ and 4″ cubes are ideal for use in NFT, slab culture, dripper or Ebb & Flood systems. 6″ Hugo cube can be used for deep Ebb & Flood tables or passive pot culture.

Remove the plastic sleeve before transplanting it into a Nutriculture hydro system for increased oxygen to the root zone and accelerated growth.

3″ Small Hole

Delta 4G 27/40 and 27/35 are compatible with SBS 25/150 propagation cubes. Box contains 384 cubes.

3″Large Hole

Delta 4G 42/40 and 40/35 are compatible with SBS 36/77 propagation cubes. Box contains 384 cubes.

4″ Small Hole

Delta 6.5G 27/40 and 27/35 are compatible with SBS 25/150 propagation cubes. Box contains 216 cubes.

4″ Large Hole

Delta 6.5G 42/40 and 40/35 are compatible with SBS 36/77 propagation cubes. Box contains 216 cubes.

The benefits of Grodan rockwool

Completely sterile and inert ideal hydroponic growing medium. Reduced risk of pests and disease.

Even root growth predominantly vertical fibre structure means identical resistance levels for each root, so roots grow evenly. The increased root development structure of the rockwool is designed for optimum air/water balance and accelerated rooting.

Uniformity quality and structure are uniform, so water content and EC (CF) will remain the same for every plant.

Re-wetting Grodan rockwool is easy to re-saturate if it dries out, reducing the risk of root damage.