There are 14 freesia species, most native to South Africa. A tender perennial flowering plant, freesia grows from a bulb, or corm, and produces highly scented flowers. Because freesia will sustain damage in temperatures below 25 degrees F, it is generally grown in pots, and, in colder climates, indoors. Plant your freesia corms in August.
Add a 1-inch layer of gravel, packing peanuts or pottery shards to the bottom of the planting pot. This will help keep the soil from running out of the bottom of the pot when you water the plant.
Mix together equal parts of peat moss and sand. Mix this with enough compost to fill the planting pot.
Push the corms into the soil to a depth of 1 to 2 inches, and placed 2 inches apart. You can plant three to five corms in a 5-inch planting pot. Cover the corms with soil. Water the soil until water runs out of the bottom of the pot.
Place the pot outside in a sunny, sheltered area. Water when the top inch of soil becomes dry. The roots will begin forming in the fall, the plant will sprout in the winter and flower in the spring.
Cut back the watering frequency (to 1/2 of what you did previously) when the flowering stops. The plant will naturally die back and you can remove the corms from the pot and save them for next year.