Cultiwool AO 36x36x40 Rockwool Cubes – Sheet of 84

Cultiwool AO propagation cubes are stone wool (rockwool) plugs for starting seeds and rooting cuttings before you transplant into a larger block or slab. One sheet holds 84 plugs, each 36 x 36 x 40 mm, with a hole for the seed or cutting.

Stone wool is clean, sterile and inert. It does not lock up or release nutrients, which gives even moisture and a steady start for young roots.

Key points

• Sheet of 84 plugs, 36 x 36 x 40 mm each
• Firm, uniform plugs that hold their shape
• Fits the same use as our other 36 x 40 rockwool cube sheets

Preparing the cubes: rockwool must be prepared before use. Soak the sheet for about 24 hours in a light nutrient solution adjusted to pH 5.2 to 6.0, then drain gently before sowing or inserting cuttings.