Mini Soil Blocker Large 4 Cell

Use this ingenious gadget to turn your potting compost into little blocks in which to raise seedlings. The blocks are composed entirely of compost and have no walls as such. Instead of the plants' roots circling as they do upon reaching the wall of a container, they fill the block to the edges and grow no further, the narrow air spaces between the blocks keeping the roots from growing from one block to another. Large blocker makes 4 48mm 2 blocks at a time.