Q: How do the molds work?
You fill the chambers with a prepared potting mix, then press the handle to release lightly compressed soil blocks that are firm enough to handle without pots.
XK906 - Soil Cube & Block Mold Set
With these molds, it's easy to make your own soil blocks for starting seedlings. Filled with a simple potting mix that you prepare from coir, compost, sand and soil amendments (instructions included), the molds form lightly compressed blocks of planting medium that are firm enough for handling, so no pots are required.
Because the blocks hold moisture well and permit good aeration, seedlings germinate and grow quickly. As roots grow to the edges, they are naturally air pruned, forming a robust, fibrous root structure. When ready to be planted out, the blocks can be placed directly into the ground, saving you time and trouble, as well as minimizing transplant shock.
The cube mold makes twenty 3/4" cubes; the block mold makes four 2" blocks. Each mold includes a removable insert that forms a dimple on top of the block or cube to accept a seed. In the block mold, dimple makers can be replaced with included cube inserts that make a 3/4" cavity in the block; this cavity allows you to start a seedling in a cube, then transfer the cube directly into the larger block for further growth.
Produced by a small British firm, these molds are well made, easy to use, and reusable year after year.
Cube mold and block mold are also available separately.
You fill the chambers with a prepared potting mix, then press the handle to release lightly compressed soil blocks that are firm enough to handle without pots.
Prepare a simple soil mix from coir, compost, sand and soil. Instructions are included with recipe and mixing guidance.
The cube mold makes twenty 3/4" cubes and the block mold makes four 2" blocks.
The blocks hold moisture and allow good aeration, and the seedlings' air-pruned roots form a robust, fibrous structure for quick growth.
Yes. Cube inserts make a 3/4" cavity in a block, so you can start a seedling in a cube and transfer it into the larger block.
Plant the whole block directly in the ground; this saves time and minimizes transplant shock.
| Materials | Zinc-plated steel |
| Dimensions | cube mold: 20 × 3/4" cubes; block mold: 4 × 2" blocks |
| Capacity | cube mold: 20 cells; block mold: 4 cells |
| Includes | Cube mold; block mold; removable dimple inserts; cube inserts; instructions |
| Package Quantity | 1 set |
| Country of Origin | UK |
| Warranty | Lee Valley Satisfaction Guarantee |

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Soil Cube & Block Molds Set
With these molds, it's easy to make your own soil blocks for starting seedlings. Filled with a simple potting mix that you prepare from coir, compost, sand and soil amendments (instructions included), the molds form lightly compressed blocks of planting medium that are firm enough for handling, so no pots are required.
Because the blocks hold moisture well and permit good aeration, seedlings germinate and grow quickly. As roots grow to the edges, they are naturally air pruned, forming a robust, fibrous root structure. When ready to be planted out, the blocks can be placed directly into the ground, saving you time and trouble, as well as minimizing transplant shock.
The cube mold makes twenty 3/4" cubes; the block mold makes four 2" blocks. Each mold includes a removable insert that forms a dimple on top of the block or cube to accept a seed. In the block mold, dimple makers can be replaced with included cube inserts that make a 3/4" cavity in the block; this cavity allows you to start a seedling in a cube, then transfer the cube directly into the larger block for further growth.
Produced by a small British firm, these molds are well made, easy to use, and reusable year after year.
Cube mold and block mold are also available separately.