The best time to plant freesias is in the fall. Put the corms in free-draining soil and water thoroughly. Plant the corms in groups of 5 to 6 for a dense flower carpet.
Freesias can grow well in both full sun and partial shade, depending on your region. However, they’ll benefit most from full sun exposure if planted in the fall.
After planting your freesias, don’t water them frequently until the roots develop. Then stick to giving them an inch of water every week for best results.
If you grow these plants in a poor-draining growing substrate, they can develop iris leaf spot disease. Never water your freesias overhead to avoid bacterial soft rot.