Plant Comfort Cubes with Holes  Plant Comfort is a premium rockwool. This unique rockwool has a special fiber structure which provides a block with less density for the roots to grow through much easier while still retaining the block’s strength. Plant Comfort is lighter and stronger than competitor “G”. The unique OptiDrain™ provides better drainage than standard slotted blocks. The OptiDrain™ provides block stability while allowing better oxygenation into the root zone. MSRP: $169.95 | 
