Cultiwool Rockwool Starter Cubes have a uniform density, firmness and fibrous structure. This means that distribution of water, nutrients and pH level are also uniform, which results in a beneficial effect on germination. The fibrous structure of the cubes means they are resilient and will not fall apart. They will retain their shape during soaking, seed germination, rooting of cuttings and transplantation into larger rockwool cubes and hydroponics systems.
The Cultiwool Rockwool Starter Cubes we sell are the larger size on the market – 1.5 inch (36 mm). They are suitable for transplanting into the larger hole 3 Inch, 4 Inch or 6 Inch rockwool blocks which can then go into your system.
What are Cultiwool Rockwool Starter Cubes made from?
Rockwool is made by exposing rock minerals to extremely high temperatures and then spinning to make fibres. This then goes into a mould to make blocks and slabs of varying sizes. The advantages of using rockwool as a growing medium are that it can retain a great deal of water for the plant. It’s fibrous nature means it can hold plenty of air too, to supply the roots with oxygen. Rockwool starter cubes are alkaline so before use they need soaking in water adjusted to a pH of 5.5 to ensure optimum acidity. Don’t squeeze out the cubes as it can damage the structure, making it less effective.
What other propagation products are there?
Trays of 77 Cultiwool Rockwool Starter Cubes fit the XL High Dome Propagators for sale at Canterbury Hydroponics. We also stock everything you need to take cuttings and bring them on successfully. Rooting hormones include Clonex, FloraMax Cloner and Root!t Gel. We also have scalpels to get the cleanest cuts. Alternatives to the Rockwool Starter Cubes include Root Riot, Jiffy Pellets, Eazy Plugs and Canna Seed Mix. You can find all of our propagation products on our site by clicking here.
