The perennial freesia grows from a small bulb-like structure known as a corm. It stands approximately 18 inches tall with long, narrow, strap-like leaves. In the spring months the plant produces flower stems that bear trumpet-shaped, fragrant, dangling flowers. Each stem has up to 12 individual flower heads. The flowers appear along one side of the flower stem in a wide range of colors. Grown as a garden plant or potted house plant, the freesia produces flowers in the winter and spring.
Choose a planting location with full sunlight for the best flowering or place the freesia container in a south-facing window. Add aged manure to the garden soil until the soil feels crumbly to the touch prior to planting the corms.
Dig a hole approximately 5 inches deep in the soil. Set the corm into the soil and firm the soil over the top of the corm. Space each corm 4 inches apart.
Water the corms well. Freesia plants enjoy moist soil conditions and do not tolerate drought well. Continue watering the freesia to keep the soil from drying out until the plant ceases to flower. Once flowering is over, discontinue watering.
Fertilize the freesia plant every two weeks when it's actively growing and blooming. Choose a high-potassium, water-soluble fertilizer. Follow the directions on the label for fertilizer applications. Consider diluting the recommended solution in half to avoid overfeeding the plant.
Clip away spent freesia flower heads using pruning clippers to encourage new flower production. Discard the flowerheads.