Stonewool cube slab

Stonewool is a great growing media to grow your seed with, or help support seedlings as they establish their root systems. It has a perfect air:water ratio and comes in a ready to use cube format with a small divot for your seed to be placed into, prior to covering with a vermiculite/perlite mix to help keep it moist and dark whilst germinating.

Stonewool is a natural media made from a volcanic rock (basalt). The rock is liquefied under extreme heat in special furnaces and then spun into threads and re-solidified into cube format. The production process guarantees sterility in the final product.

When hydrated, each cube has a consistent 80% Water 20% Air ratio which makes it an ideal media for hydroponics as it is difficult to over water the cubes. This prevents seedling problems such as damping off.

To use this media simply unpack it from the box, fully saturate the cubes and then drain them off, place the cubes onto your net cups, place the seed in the pre-punched hole provided on top of the cube, cover with vermiculite/perlite then gently shower with water to wet the seeds and leave to germinate, watering when required. These can be placed into a warm sheltered position to germinate, either directly in your My Greens Hydroponic System, or in another location if a warm sunny position is lacking (Hello Winter!).

1 Stonewool slab = 100 cubes, enough for x2 growing seasons (in a My Greens 48 plant system)