I tried using molds to make soil blocks for starting seeds for the first time this year. I found that they worked well for the okra and some of the herbs that I planted in them, although a few herbs such as summer savory and marjoram still gave me trouble.
One thing that I need to do differently is to increase the space between the soil blocks so plant roots don’t grow from one block into another. I also need to plant only one seed per block of large plants such as okra.
I just watched a TV program about starting seeds that included the use of soil blocks. You can find the episode at growing a greener world. They gave a lot of useful advice about planting seeds.