The soil discs included in your kit will expand to several times their original size when soaked in water. This will be the starter soil for your pots.
Place the soil discs in a large bowl. Pour 2 cups of warm water (approximately 120°F) directly over the soil discs. Add more water as necessary, but do not over saturate the soil.
Drain the soil: Overly saturated soil may cause mold, so drain the soil well by firmly squeezing it to remove any excess water until the soil is just slightly moist.
Potting the soil: Gently crumble the soil and place it inside the burlap pot until it is almost full, making sure to break up any clumps and evenly place the soil. The soil should be flat on top and you'll want to avoid packing it too tightly into the pots.