Growing coriander at home is the best way to have ready access to this fresh aromatic herb. Start growing coriander once all the dangers of frost are passed. Coriander grows best in well-drained but moisture-retentive soil rich in organic matter. Prepare planting beds in advance with well aged compost. Sow the seeds at a depth approximately three times the diameter of the seed, and plant every 2 to 3 weeks for a continuous supply of coriander.