: Handle rockwool carefully. The tiny fibers can irritate your skin, eyes, and lungs; wearing gloves and a mask is recommended during handling. Where to Buy Locally vs. Online How To Start Seeds In RockWool Cubes Indoors
: It absorbs water rapidly and distributes it evenly throughout the cube, ensuring that roots never dry out. Essential Preparation Tips buy rockwool cubes home depot
: Rockwool has a naturally high pH (around 8.0) that can lock out nutrients. You must soak the cubes in slightly acidic water (pH 5.5 to 6.5) for at least an hour before use. : Handle rockwool carefully
: Even when fully saturated, rockwool maintains roughly 18% oxygen between its fibers, making it nearly impossible to overwater or "drown" your seedlings. Online How To Start Seeds In RockWool Cubes
: Smaller 1-inch cubes are ideal for smaller propagation trays or starting seeds that will be moved quickly to a larger medium. : ~$18.99. .N/A 72PCS 1.2 in. Rockwool Cubes with Net Cups Go to product viewer dialog for this item.
: Never squeeze your cubes when wet. This crushes the delicate internal structure, reducing the oxygen-holding capacity and hindering root growth.