Embed the seeds in the middle position above the nursery block, in that case, the seeds are completely submerged into the blocks. The depth of submergence is based on the diameter of the seed, and generally, the size of depth is two times than the diameter of the seed. For small seeds, such as petunia, they can be placed directly on the surface of the blocks, and sprayed again with a sprayer after sowing of the seeds.
Put the seedlings in a small container that can hold water.
Pour clean water in the seedlings blocks.
As the nursery blocks continue to grow, replenish the blocks with water timely.
The blocks can be used with seedling boxes, plug trays, etc. Or you can put a few seedling blocks in a large tray to start directly seedlings, which is easy to achieve.
