Make your own soil blocks for starting seedlings with these large and small molds
- Filled with a potting mix prepared from coir, compost, sand and soil amendments. The mold forms 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
https://www.theartofdoingstuff.com/how-to-make-soil-blocks-for-starting-seeds-no-more-pots/
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