Soil Blockers

What Is Soil Blocking?

Soil blocking is a method of propagating seedlings that involves filling a metal blocking tool with soil and squeezing it to form a compressed cube.

Seeds are planted directly into the formed block, which can come in various sizes. This method is advantageous for air pruning roots, which occurs when the root systems start to grow toward the drier soil and air surrounding the outer layer of the block.

Read more about soil blocking in this article.

How Soil Blocks Fit in 1020 Trays

Soil blocks pair perfectly with standard 1020 trays, including both solid bottom and mesh trays. A sturdy 1020 tray provides support and makes it easy to bottom water, move seedlings, and keep blocks organized during germination and early growth. The guide below shows how common soil block sizes fit inside a 1020 tray so you can plan your seed starting setup.

Drop Seeders for Soil Blockers

Bootstrap Farmer proudly carries Mindful Farmer Drop Seeders designed for the Micro 20 soil blockers.