Seed starting tools, supplies, and kits in the SHOP! Large Soil Block Maker makes four 2-inch cells Soil blocking is a simple and easy way to start seeds in a home setting. There are no pots to store or purchase each year. We use trays with no drainage holes so it can be done anywhere indoors. We find that the seedlings are healthier, grow quicker, and in general hit the ground running and suffer no transplant shock. Soil blocking has changed our seed starting experience and thousands of our cus