Fill the planting pot to within 3/4 inch of the rim with a fast-draining potting soil.
Push the freesia corms, pointed end up, 2 inches deep into the soil and cover them with soil. If you are using a 6-inch pot, you can fit 3 to 6 corms, depending upon their size.
Water the soil until the excess water runs from the bottom of the pot. Place the pot in a sunny area. The corm will spend the fall producing roots and should sprout in the winter.
Amend the soil by adding 3 inches of compost and mixing it into the top 6 inches of soil. Compost will help any soil drainage problems you may have and add nutrients to the soil.
Push the corms, pointed end up, 2 inches into the soil and space them 3 inches apart.
Water the bed until the top 6 inches of soil is moist.