Saffron is of the plant which its reproduction and accrual is made through corm.
After initial cultivating and planting saffron seed, it produces saffron for a period of 7 to 10 years at large automatically. Saffron cultivation stage is merely made at the first year. In the following years, only caring and harvesting stages of saffron is made as well. Saffron requires fertile soil, usually sandy and gravel, and also animal fertilizer (2 to 3 weeks before planting of 25 to 30 tons per each ha land area).
Reproduction of saffron is made through establishing new corms which are produced of mother corm. Saffron corm remains inactive and stagnant on the earth at summer months and starts its re-growth at the end of summer season as well. According to the extant reports, numerous types of known saffron are cultivated in various countries.